You get safety and security all in one with an EXIT Sign hidden camera, Universal, easy snap fit installation, AC only, 120 VAC, 12 watts, Includes:, Wireless cameras include FREE 2, 4 GHz receiver (a $160, 00 value), All necessary power supplies and battery packs are included, Black and white cameras feature , 003 Lux which allows best possible images in almost complete darkness, Camera requires some ambient light (night light, television), Options:, High Power is available with most 2, 4 GHz transmitters and will increase transmission distance up to an addtional 1500 feet, , , increasing your wireless transmission up to 2500 feet, Available with built-in DVR, Completely self contained, No additional recording device is needed, Video captured by camera is stored on a SD Card, Specifications:, Image Sensor: 1/3"" Sony CCD (B/W) 1/4"" CCD (Color), Resolution: 400 Lines(B/W) 380 Lines(Color), Min, Illumination: , 003 Lux (B/W) 1 Lux (Color), Lens: 3, 7mm Wide Angle, Power Required: 12 volts SKU: STHC-EXITS-WC