Ax-503r is a waterproof ir bullet ip camera, suitable for outdoor surveillance application. It adopts h.264 compression technology and reaches 1280*720 resolution. There is array ir led, realizing 24 hours day & night monitoring. Ax-503r supports p2p could connection without any ddns map or fixed ip address. Users can access the camera anytime anywhere through cellphone, pc client software and web server. It can be embedded with rf alarm module to link with maximum 30 channels external alarm detectors within 30 meters. It is very easy for you to diy an video surveillance and alarm system for your house or office. This camera can work with ax-203 or ax-403a as slave device to take snapshots or record as requested.