In addition to providing accurate time, this fully-functional wall clock is able to monitor all the activities in your business or work environment that may otherwise go undetected. This traditional style clock blends into a variety of environments. Perfect in offices, hospitals, law offices, schools and government agencies. Industrial wall clock with built-in camera & 900MGhz transmitter. Enclosed back of clock completely conceals camera & transmitter from view. A versatile hidden  camera. Clock face numerals may vary. Resolution : Hi-Res 600 Lines, Image Sensor : 1/3" CCD, Min. Illumination : 0.01 Lux, Lens : 3.6mm Wide Angle, Pixels : 270,000, Sync. Type : Internal, Shutter Speed : 1/60~1/100,000sec (NTSC), S to N Ratio : 45dB, Power Required : 12 Volts, Current Consumption : 250mA Max