Key Features . 5 MP PIR bullet camera x 2PIR detection and strobe light alarm to warn off intruders in real timeEXIR 2.0 advanced infrared technology with 20 m IR distanceWater and dust resistant (IP67) Using built-in PIR (passive infrared) sensor technology only warm heat sources will be detected meaning you will avoid false alerts from scenarios such as moving trees. With the brightly lit LED emitting upon detection you can ensure an additional level of security from your system designed to deter suspicious activity.EXIR (Extended Infrared) enhances night vision by reducing the centred brightness and spreading the exposure to darker areas giving a more complete and bright image..