When you need to protect entrances and exits the Exit sign is the answer this fully functioning Exit sign camera has a high quality CCD camera built inside, the camera is virtually hidden. We integrate a 2.4 GHz 4 channel transmitters to create a wireless system for ease of placement and include a matching 8 channel scroll selectable receiver. Why 8 channels? This allows the user versatility in a wireless application. Each exit sign has a choice of black in white or color camera. Camera Specifications: 92 degree field of view 3.6mm Lens 1/3 DSP Color CCD image Sensor, ¼ DSP B/W 380 lines of resolutions color, 420 lines B/W 0.5 LUX Color, .05 B/W DC 12V power NTSC Audio is not available Transmitter / Receiver Specifications: 4-channel operations (camera) 8 channel scroll capable (receiver) 300-700 foot line of sight (LOS) approximate range (LOS is dependent upon, obstructions and interference from other wireless devices) Includes Hidden Video camera systems Power supply RCA Cable Instructions Size 11 5/8 x 7 1/2 x 2