Macally Wi-Fi Interference Free Wireless Baby Monitoring System. Maximum resolution: 720 x 480 pixels. Minimum illumination: 0 lx, Viewing angle, horizontal: 55 °, Viewing angle, vertical: 55 °. Sensor type: CMOS. Weight: 146 g. Operating temperature range (T-T): -10 - 50 °C, Storage temperature range (T-T): -20 - 60 °C, Operating relative humidity range: 0 - 85 %