Compro Network Video Recorders (NVR) / Network DVRs (3)
Embedded Linux operating system for superior reliability. Simultaneous 4-channel megapixel IP camera recording. Support for SATA 3.0Gbs 3.5" HDD. Support for ONVIF and generic RTSP streaming. USB port for video backup. Remotely view and record video, and search and play back recordings. SMS & Email alert notification. Full PTZ control. Intelligent iWizard for easy and effortless setup. Energy-efficient design.Add to Compare
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Intrusion alarm systems are currently facing a growing number of potential error sources in the environment. At the same time, alarm systems must comply with increasingly demanding legal requirements for sensors and motion detectors. As a future-proof solution, detectors equipped with Sensor Data Fusion technology raise the level of security while reducing the risk of cost- and time-intensive false alarms. This article provides a comprehensive overview of Sensor Data Fusion technology. Anti-masking alarms A cultural heritage museum in the South of Germany for decades, the installed intrusion alarm system has provided reliable protection on the premises. But suddenly, the detectors trigger false alarms every night after the museum closes. The system integrators are puzzled and conduct extensive tests of the entire system. When they finally identify the culprit, it’s unexpected: As it turns out, the recently installed LED lighting system in the museum’s exhibition spaces radiates at a wavelength that triggers anti-masking alarms in the detectors. Not an easy fix situation, since a new lighting system would prove far too costly. Ultimately, the integrators need to perform extensive detector firmware updates and switch to different sensor architecture to eliminate the error source. This scenario is by no means an isolated incident, but part of a growing trend. Need for reliable detector technology Legal requirements for anti-masking technology are becoming stringent in response to tactics by criminals The number of potential triggers for erroneous alarms in the environment is on the rise. From the perspective of system operators and integrators, it’s a concerning development because every false alarm lowers the credibility of an intrusion alarm system. Not to mention steep costs: Every false call to the authorities comes with a price +$200 tag. Aside from error sources in the environment, legal requirements for anti-masking technology are becoming more stringent in response to ever more resourceful tactics employed by criminals to sidestep detectors. What’s more, today’s detectors need to be fortified against service outages and provide reliable, around-the-clock operability to catch intruders in a timely and reliable fashion. Sensor Data Fusion Technology In light of these demands, one particular approach has emerged as a future-proof solution over the past few years: Sensor Data Fusion technology, the combination of several types of sensors within one detector – designed to cross-check and verify alarm sources via intelligent algorithms – holds the keys to minimising false alarms and responding appropriately to actual alarm events. This generation of detectors combines passive infrared (PIR) and microwave Doppler radar capabilities with artificial intelligence (AI) to eliminate false alarm sources without sacrificing catch performance. Motion detectors equipped with Sensor Data Fusion technology present a fail-proof solution for building security “It’s not about packing as many sensors as possible into a detector. But it’s about including the most relevant sensors with checks and balances through an intelligent algorithm that verifies the data for a highly reliable level of security. The result is the highest-possible catch performance at the minimum risk for erroneous alarms,” said Michael Reimer, Senior Product Manager at Bosch Security Systems. Motion detectors with sensor data fusion Looking ahead into the future, motion detectors equipped with Sensor Data Fusion technology not only present a fail-proof solution for building security. The comprehensive data collected by these sensors also unlock value beyond security: Constant real-time information on temperature and humidity can be used by intelligent systems and devices in building automation. Integrated into building management systems, the sensors provide efficiency improvements and lowering energy costs Integrated into building management systems, the sensors provide the foundation for efficiency improvements and lowering energy costs in HVAC systems. Companies such as Bosch support these network synergies by constantly developing and optimising intelligent sensors. On that note, installers must be familiar with the latest generation of sensor technology to upgrade their systems accordingly, starting with a comprehensive overview of error sources in the environment. Prominent false alarm triggers in intrusion alarm systems The following factors emerge as frequent triggers of false alarms in conventional detectors: Strong temperature fluctuations can be interpreted by sensors as indicators of a person inside the building. Triggers range from floor heating sources to strong sunlight. In this context, room temperatures above 86°F (30°C) have proven particularly problematic. Dust contamination of optical detectors lowers the detection performance while raising susceptibility to false alarms. Draft air from air conditioning systems or open windows can trigger motion sensors, especially when curtains, plants, or signage attached to the ceilings (e.g. in grocery stores) are put in motion. Strong light exposure directly on the sensor surface, e.g. caused by headlights from passing vehicles, floodlights, reflected or direct sunlight – all of which sensors may interpret as a flashlight from an intruder. Extensive bandwidth frequencies in Wi-Fi routers can potentially confuse sensors. Only a few years ago, wireless routers operated on a bandwidth of around 2.7GHz while today’s devices often exceed 5GHz, thereby catching older detectors off guard. LED lights radiating at frequencies beyond the spectrum of visible light may trigger sensors with their infrared signals. Regarding the last two points, it’s important to note that legislation provides clear guidelines for the maximum frequency spectrum maintained by Wi-Fi routers and LED lighting. Long-term security But the influx of cheap and illegal products in both product groups – products that do not meet the guidelines – continues to pose problems when installed near conventional detectors. For this reason, Sensor Data Fusion technology provides a reliable solution by verifying alarms with data from several types of sensors within a single detector. Beyond providing immunity from false alarm triggers, the new generation of sensors also needs to comply with the current legislature. These guidelines include the latest EN50131-grade 3, and German VdS class C standards with clear requirements regarding anti-masking technology for detecting sabotage attempts. This is exactly where Sensor Data Fusion technology provides long-term security. Evolution of intrusion detector technology Initially, motion detectors designed for intrusion alarm systems were merely equipped with a single type of sensor; namely passive infrared technology (PIR). Upon their introduction, these sensors raised the overall level of building security tremendously in automated security systems. But over time, these sensors proved limited in their catch performance. As a result, manufacturers began implementing microwave Doppler radar capabilities to cover additional sources of intrusion alarms. First step detection technology In Bosch sensors, engineers added First Step detection to trigger instant alarms upon persons entering a room Over the next few years, sensors were also equipped with sensors detecting visible light to catch flashlights used by burglars, as well as temperature sensors. In Bosch sensors, engineers added proprietary technologies such as First Step detection to trigger instant alarms upon persons entering a room. But experience in the field soon proved, especially due to error sources such as rats and other animals, that comprehensive intrusion detection demands a synergetic approach: A combination of sensors aligned to cross-check one another for a proactive response to incoming signals. At the same time, the aforementioned bandwidth expansion in Wi-Fi routers and LED lighting systems required detectors to implement the latest circuit technology to avoid serving as ‘antennas’ for undesired signals. Sensor data fusion approach At its very core, Sensor Data Fusion technology relies on the centralised collection of all data captured by the variety of different sensors included in a single detector. These data streams are directed to a microprocessor capable of analysing the signals in real-time via a complex algorithm. This algorithm is the key to Sensor Data Fusion. It enables the detector to balance active sensors and adjust sensitivities as needed, to make truly intelligent decisions regarding whether or not the data indicates a valid alarm condition – and if so, trigger an alarm. Advanced verification mechanisms The current generation of Sensor Data Fusion detectors, for instance from Bosch, feature advanced verification mechanisms, including Microwave Noise Adaptive Processing to easily differentiate humans from false alarm sources (e.g. ceiling fans or hanging signs). For increased reliability, signals from PIR and microwave Doppler radar are compared to determine whether an actual alarm event is taking place. Additionally, the optical chamber is sealed to prevent drafts and insects from affecting the detector, while the detector is programmed for pet and small animal immunity. Sensor cross-verification Further types of sensors embedded in current and future generations of Sensor Data Fusion detectors include MEM-sensors as well as vibration sensors and accelerometers. Ultimately, it’s important to keep in mind that the cross-verification between sensors serves to increase false alarm immunity without sacrificing the catch performance of actual intruders. It merely serves to cover various indicators of intrusion. Protecting UNESCO World Cultural Heritage in China Intelligent detectors equipped with Sensor Data Fusion are protecting historic cultural artifacts in China from theft and damage. At the UNESCO-protected Terracotta Warriors Museum site, one hundred TriTech motion detectors from Bosch with PIR and microwave Doppler radar technology safeguard the invaluable treasures against intruders. To provide comprehensive protection amid the specific demands of the museum site, the detectors have been installed on walls and ceilings to safeguard the 16,300-square-meter museum site. To ensure an optimal visitor experience without interference from glass walls and other barriers, many detectors are mounted at a height of 4.5 meters (15 feet) above ground under the ceiling. Despite their height, the detectors provide accurate data around the clock while exceeding the performance limits of conventional motion detectors, which clock out at a mere 2 meters (6 feet) catchment area. Integrated video systems The site also presents additional error sources such as large amounts of dust that can contaminate the sensors, as well as visitors accidentally dropping their cameras or mobile phones next to museum exhibits. To distinguish these events from actual criminal activity, the intrusion alarm system is integrated with the museum’s video security system. This allows for verifying alarm triggers with real-time video footage at a fast pace: In the case of an actual alarm event, the system alerts the on-site security personnel in the control room in less than two seconds. Added value beyond security Sensor Data Fusion technology provides a viable solution for the rising number of error sources in the environment As of today, Sensor Data Fusion technology already provides a viable solution for the rising number of error sources in the environment while providing legally compliant building security against intruders. In light of future developments, operators can leverage significant added value from upgrading existing systems – possibly without fundamentally replacing current system architecture – to the new detector standard. Added value how? On one hand, the detectors can integrate with access control, video security, voice alarm, and analytics for a heightened level of security. These synergetic effects are especially pronounced on end-to-end platforms like the Bosch Building Management system. On the other hand, the data streams from intelligent detectors also supply actionable intelligence to building automation systems, for instance as the basis for efficiency improvements and lowering energy consumption in HVAC systems. New backward-compatible detectors Bosch will release a new series of commercial detectors by end of 2021, based on the latest research on risk factors for false alarm sources in the environment and line with current legislation and safety standards. Throughout these developments, installers can rest assured that all new detectors are fully backward compatible and work with existing networking/architecture. With that said, Sensor Data Fusion technology emerges as the key to more secure intrusion alarm systems today and in the future. TriTech detectors from Bosch For reliable, fail-proof alarms the current series of TriTech detectors from Bosch relies on a combination of different sensor data streams, evaluated by an integrated algorithm. These Sensor Data Fusion detectors from Bosch combine up to five different sensors in a single unit, including: Long-range passive infrared (PIR) sensor Short-range PIR sensor Microwave sensor White light sensor Temperature sensor Equipped with these sensors, TriTech detectors are capable of detecting the most frequent sources of false alarms; from headlights on passing cars to a mouse passing across the room at a 4.5-meter distance to the detector. What’s more, TriTech detectors provide reliable performance at room temperatures above 86°F (30°C) while fully guarding against actual intrusion and sabotage attempts from criminals.
Cyber threats hit the headlines every day; however digital hazards are only part of the security landscape. In fact, for many organisations - physical rather than virtual security will remain the burning priority. Will Liu, Managing Director of TP-Link UK, explores the three key elements that companies must consider when implementing modern-day business surveillance systems. 1) Protecting more than premises Video surveillance systems are undoubtedly more important than ever before for a huge number of businesses across the full spectrum of public and private sector, manufacturing and service industries. One simple reason for this is the increased use of technology within those businesses. Offices, workshops, and other facilities house a significant amount of valuable and expensive equipment - from computers, and 3D printers to specialised machinery and equipment. As a result, workplaces are now a key target for thieves, and ensuring the protection of such valuable assets is a top priority. A sad reality is that some of those thieves will be employees themselves. Video surveillance system Of course, video surveillance is often deployed to combat that threat alone, but actually, its importance goes beyond theft protection. With opportunist thieves targeting asset-rich sites more regularly, the people who work at these sites are in greater danger too. Effective and efficient surveillance is imperative not just for physical asset protection, but also for the safety From this perspective, effective and efficient surveillance is imperative not just for physical asset protection, but also for the safety of colleagues as well. Organisations need to protect the people who work, learn or attend the premises. A video surveillance system is, therefore, a great starting point for companies looking to deter criminal activity. However, to be sure you put the right system in place to protect your hardware assets, your people, and the business itself, here are three key considerations that make for a successful deployment. 2) Fail to prepare, and then prepare to fail Planning is the key to success, and surveillance systems are no different. Decide in advance the scope of your desired solution. Each site is different and the reality is that every solution is different too. There is no ‘one-size-fits-all solution and only by investing time on the exact specification can you arrive at the most robust and optimal solution. For example, organisations need to consider all the deployment variables within the system’s environment. What is the balance between indoor and outdoor settings; how exposed to the elements are the outdoor cameras; what IP rating to the need? A discussion with a security installer will help identify the dangerous areas that need to be covered and the associated best sites for camera locations. Camera coverage After determining location and coverage angles, indoors and outdoors, the next step is to make sure the cameras specified are up to the job for each location. Do they have the right lens for the distance they are required to cover, for example? It is not as simple as specifying one type of camera and deploying it everywhere. Devices that can use multiple power sources, Direct Current, or Power over Ethernet well are far more versatile You have to consider technical aspects such as the required level of visual fidelity and whether you also need two-way audio at certain locations? Another simple consideration is how the devices are powered. Devices that can use multiple power sources, Direct Current or Power over Ethernet as well are far more versatile and reliable. Answers to these questions and a lot more need to be uncovered by an expert, to deliver a best-of-breed solution for the particular site. 3) Flexibility breeds resilience Understanding exactly what you need is the start. Ensuring you can install, operate and manage your video surveillance system is the next step. Solutions that are simple to install and easy to maintain will always be favoured - for example, cameras that have multiple sources of power can be vital for year-round reliability. Alongside the physical aspect of any installation, there is also the software element that needs to be considered. The last thing organisations need is a compatibility headache once all their cameras and monitoring stations are in place. Selecting cameras and equipment with the flexibility to support a variety of different operating systems and software is important not just for the days following the installation, but also to future-proof the solution against change. Easy does it Once the system is up and running, the real work of video surveillance begins. Therefore, any organisation considering deploying a system should look to pick one that makes the day-to-day operation as easy as possible to manage. And again - that is all about the set-up. Cameras can also provide alerts if they have been tampered with or their settings changed The most modern systems and technology can deliver surveillance systems that offer smarter detection, enhanced activity reporting so you learn more about your operations, and also make off-site, remote management easy to both implement and adjust as conditions change. For example, camera software that immediately notifies controllers when certain parameters are met - like motion detection that monitors a specific area for unauthorised access. Cameras can also provide alerts if they have been tampered with or their settings changed without proper authorisation. Remote management of HD footage What’s more, the days of poor quality or unreliable transfer of video are long gone. The high-quality HD footage can be captured, stored, and transferred across networks without any degradation, with hard drives or cloud-based systems able to keep hundreds of days of high-quality recordings for analysis of historical data. Finally, the best surveillance solutions also allow for secure remote management not just from a central control room, but also from personal devices and mobile apps. All this delivers ‘always-on’ security and peace of mind. The watchword in security Modern video surveillance takes organisational security to the next level. It protects physical assets, ensures workplace and workforce safety, and helps protect the operations, reputation, and profitability of a business. However, this is not just an ‘off-the-shelf purchase’. It requires proper planning in the form of site surveys, equipment and software specifications, as well as an understanding of operational demands and requirements. Investing time in planning will help businesses realise the best dividends in terms of protection. Ultimately, that means organisations should seek to collaborate with vendors who offer site surveys - they know their equipment best, your needs, and can work with you to create the perfect solution.
Technology based on the cloud has become a popular trend. Most IT systems now operate within the cloud or offer cloud capabilities, and video surveillance is no exception: virtually every major hardware and software vendor offers cloud-based services. Users benefit from the cloud due to its numerous advantages, such as ease of implementation, scalability, low maintenance costs, etc. Video surveillance as a service (VSaaS) offers many choices, so there is an optimal solution for each user. However, what about integrators? For them, VSaaS is also a game-changer. Integrators are now incentivised to think about how they can maintain their markets and take advantage of the new business opportunities that the cloud model provides. Hosted video surveillance The cloud service model has drastically changed the role of an integrator. Traditionally, integrators provided a variety of services including system installation, support, and maintenance, as well as served as a bridge between vendors and end-users. In contrast, hosted video surveillance as a service requires a security system installer to simply install cameras and connect them to the network, while the provider is in direct contact with each end-user. The cloud service model has drastically changed the role of an integrator There is no end to on-premises systems. However, the percentage of systems where the integrator’s role is eliminated or considerably reduced will continue to increase. How can integrators sustain their markets and stay profitable? A prospective business model might be to become a provider of VSaaS (‘cloud integrator’) in partnership with software platform vendors. Cloud-based surveillance Some VMS vendors offer software VSaaS platforms that form the basis for cloud-based surveillance systems. Using these solutions, a data centre operator, integrator, or telecom service provider can design a public VSaaS or VSaaS in a private cloud to service a large customer. The infrastructure can be built on any generic cloud platform or data centre, as well as resources owned by the provider or client. So, VSaaS providers have the choice between renting infrastructure from a public cloud service like Amazon Web Services, Microsoft Azure, or Google Cloud or using their own or clients’ computing infrastructure (virtual machines or physical servers). Gaining competitive advantage When integrators purchase commitment use contracts for several years, they can achieve significant savings As an example, a telecom carrier could deploy VSaaS on their own infrastructure to expand their service offering for clients, gaining a competitive advantage and enhancing profits per user. Using a public cloud, a smaller integrator can host the computing infrastructure immediately, without incurring up-front costs and with no need to maintain the system. These cloud services provide scalability, security, and reliability with zero initial investment. When integrators purchase commitment use contracts for several years, they can achieve significant savings. Next, let’s examine VSaaS options available in the market from an end-users point of view. With hosted (or cloud-first, or true-cloud) VSaaS solutions, all the video feeds are transmitted directly from cameras to the cloud. Optionally, video can be buffered to SD cards installed on cameras to prevent data losses in case of Internet connection failures. Dedicated hardware bridges There are many providers of such services that offer their own brand cameras. Connecting these devices to the cloud should only take a few clicks. Firmware updates are usually centralised, so users don’t have to worry about security breaches. Service providers may offer dedicated hardware bridges for buffering video footage and secure connections to the cloud for their branded and third-party cameras. Service providers may offer dedicated hardware bridges for buffering video footage Typical bridges are inexpensive, basic NVRs that receive video feeds from cameras, record on HDD, and send video streams to the cloud. The most feature-rich bridges include those with video analytics, data encryption, etc. Introducing a bridge or NVR makes the system hybrid, with videos stored both locally and in the cloud. At the other end of the spectrum relative to hosted VSaaS, there are cloud-managed systems. Video management software In this case, video is stored on-site on DVRs, NVRs, video management software servers, or even locally on cameras, with an option of storing short portions of footage (like alarm videos) in the cloud for quick access. A cloud service can be used for remote viewing live video feeds and recorded footage, as well as for system configuration and health monitoring. Cloud management services often come bundled with security cameras, NVRs, and video management software, whereas other VSaaS generally require subscriptions. Keep in mind that the system, in this case, remains on-premises, and the advantages of the cloud are limited to remote monitoring and configuring. It’s a good choice for businesses that are spread across several locations or branches, especially if they have systems in place at each site. On-site infrastructure All that needs to be changed is the NVRs or VMS with a cloud-compatible model or version All locations and devices can be remotely monitored using the cloud while keeping most of the existing on-site infrastructure. All that needs to be changed is the NVRs or VMS with a cloud-compatible model or version. Other methods are more costly and/or require more resources to implement. Hosted VSaaS helps leverage the cloud for the highest number of benefits in terms of cost and technological advantages. In this case, the on-site infrastructure consists of only IP cameras and network equipment. This reduces maintenance costs substantially and also sets the foundation for another advantage of VSaaS: extreme and rapid scalability. At the same time, the outgoing connection at each site is critical for hosted VSaaS. Video quality and the number of cameras directly depend on bandwidth. Broadband-connected locations Because the system does not work offline, a stable connection is required to stream videos. In addition, cloud storage can be expensive when many cameras are involved, or when video archives are retained for an extended period. The hosted VSaaS is a great choice for a small broadband-connected location The hosted VSaaS is a great choice for small broadband-connected locations and is also the most efficient way to centralise video surveillance for multiple sites of the same type, provided they do not have a legacy system. Since it is easy to implement and maintain, this cloud technology is especially popular in countries with high labour costs. Using different software and hardware platforms, integrators can implement various types of VSaaS solutions. Quick remote access For those who adhere to the classic on-premises approach, adding a cloud-based monitoring service can grow their value proposition for clients with out-of-the-box capabilities of quick remote access to multiple widely dispersed sites and devices. For small true-cloud setups, there is a possibility to rent a virtual machine and storage capacity in a public cloud (such as Amazon, Google, or Microsoft) and deploy the cloud-based VMS server that can handle dozens of cameras. In terms of features, such a system may include anything from plain video monitoring via a web interface to GPU-accelerated AI video analytics and smart search in recorded footage, depending on the particular software platform. Optimising internet connection Hybrid VSaaS is the most flexible approach that enables tailoring the system to the users’ needs High-scale installations, such as VSaaS for public use or large private systems for major clients, involve multiple parts like a virtual VMS server cluster, web portal, report subsystem, etc. Such systems can also utilise either own or rented infrastructure. Some vendors offer software for complex installations of this kind, though there are not as many options as for cloud-managed systems. Finally, hybrid VSaaS is the most flexible approach that enables tailoring the system to the users’ unique needs while optimising internet connection bandwidth, cloud storage costs, and infrastructure complexity. It’s high time for integrators to gain experience, choose the right hardware and software, and explore different ways of building systems that will suit evolving customer demands in the future.
CFD Sales will be offering the complete range of COMPRO's products and solutions to the Japanese market COMPRO Technology Inc., leading Cloud IP video surveillance solution provider, recently announced the appointment of CFD Sales as COMPRO's distributor in Japan. From now on, CFD Sales will be offering the complete range of COMPRO's products and solutions to the Japanese market. Established in 1974, CFD Sales is a one-stop-supplier where customers can buy various kinds of products for building up their personally tailored PCs. CFD Sales’ mission is to provide products to important customers in a very timely manner by listening and understanding overall market and individual customers’ requirement. “CFD Sales operates with a strong emphasis on state-of-the-art products and technologies, while COMPRO’s innovations perfectly match what CFD Sales. We’re convinced that CFD Sales will help us to further enhance COMPRO’s brand awareness in Japan and penetrate the local market.” said General Manager of COMPRO Technology. General Manager of CFD Sales commented, “Cloud surveillance solution is now in great demands in Japanese market; that is why we are very happy about the agreement signed with COMPRO. It enables us to offer our customers video equipment that is highly reliable in operation, easy to set up and use. We will work closely to build upon COMPRO’s branding in Japanese marketplace.”
COMPRO Technology Inc., a leading Cloud IP Video Surveillance Solution Provider, recently announced the official release of C4Home 2.2, the latest version of its robust cloud service. C4Home 2.2 features new functions: iPad layout, scene selection mode, in-app cloud service subscription, IR configuration in app, and OSD configuration in app. iPad Layout With iPad layout, C4Home becomes a universal iOS app, which supports all iPhones and iPads. The biggest advantage of this amazing breakthrough is no more back and forth between menus and setting pages; they can be shown within the user interface on iPad’s large screen, which will be more friendly and convenient to users. Scene Selection Mode With scene selection mode, you can set up the most suitable video settings for different environments with just one click. There are different kinds of scenes you can choose: living room, baby monitor, pet monitor, outdoor and backlight. For example, if the environment is in low-light, baby monitor will be the best selection; if the environment is in quick motion status, pet monitor will be more appropriate. In-app Subscription With in-app cloud service subscription, you can purchase C4home cloud recording directly in app, no need to purchase it on PC anymore, which is very convenient for users to finish the one stop shopping of C4Home cloud recording. Please note the currency is only in USD and NTD for now. Besides the major new features above, some other new features will also benefit the users a lot, like: “IR configuration in app” can turn on or turn off the IR LED on the fly. “OSD configuration in app” can enable on-screen-display when live view or recording. “Manual recording to SD card and C4Home” can manually start immediate recording to SD card or to C4Home cloud storage. All these new features are aim to provide users more configuration options and better user experience. C4Home 2.2 is suitable for use on all COMPRO TN series cameras. All users are welcome to download it from App Store and Google Play to create their own exclusive surveillance cloud for free and make sure you have upgraded camera firmware to latest one to enjoy C4Home 2.2 new features.
COMPRO Technology Inc., a leading Cloud IP Video Surveillance Solution Provider, recently announced TN65DB & TN70DB Cloud Network Camera Doorbell. When visitor rings the doorbell, you will be notified via your smartphone immediately; you can also see the image on the phone and talk to the visitor through two way audio feature of the camera. With this smart doorbell, no matter where you are, you can keep track of who visits your home or office and instantly communicate with them. From now on, you will never miss any important visitor anymore; it’s a perfect and smart solution for home or small office users! Cloud Network Camera Doorbell contains the doorbell button kit and cloud network camera; users can install the camera and upgrade the doorbell button by themselves easily. It can bring so much convenience to life, such as: At home: Whether you are in bed, toilet, cooking or shower..., and not be able to answer the doorbell, just pick up the phone and you can immediately know who the visitor is. You can also use the two-way audio to tell the visitor to wait. Go out: If you own a home office or small office, you always need to go out to visit your clients. Cloud Network Camera Doorbell can let you no longer worry about missing important visitors, express delivery or home delivery. TN65DB & TN70DB There are two options of Cloud Network Camera Doorbell currently: TN65DB & TN70DB. Both of them are equipped with megapixels and built-in speaker/microphone, and also with two-way audio feature from C4Home App. TN70DB is more equipped with professional-grade sensor and infrared LED light source to provide day and night surveillance environment. In order to celebrate the launch of Cloud Network Camera Doorbell, COMPRO provides a very special price: TN65DB $129 USD and TN70DB $169 USD! Users can take the first step of their smart home by using Cloud Network Camera Doorbell, it’s very cost-effective, very convenient and very smart!
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