SPECIFICATIONS: 1) LCD: 100mm (4? Colour TFT LCD 2) Picture Distortion: <5% 3) Signal to Noise Ration: More than 70dB 4) Number of Pixels: 105,600 5) Power Consumption:0.2W (Standby), 9W (Max) 6) Power Requirement:DC18V@800mA 7) Call Signal: Electronic Chime 8) Operating temperature:-20癈 ~ +50癈 9) Operating Humidity:45-85%RH 10) Installation: Surface-mount (for indoor use only) 11) Material: ABS Plastic, White