The MDIREX49V comes complete with a 3.5-8mm Vari-focal Lens. The lens and infrared leds provide optimum performance in demanding lighting conditions making the camera suitable for around the clock surveillance. The camera also has an automatic IR trigger, the IR activates in low light conditions and turns off during normal day light hours allowing effective IR illumination coverage over up to 20 meters. The IR cameras are water resistant with an IP65 rating, making them suitable for outdoor use.