Type HDTV/Megapixel | Pixel Resolution 4 Mega Pixel | Focal Length 2.8 mm | IR Illumination | Sensor size 1/3” | Microphone Built-in | 1xMicroSD Card Slot | 1xAlarm In | 1xAlarm Out | Supports card capacities up to 256GB | Power options PoE/12V | Power supply requirements 12V DC/PoE | Operating temperature range –10°C to +45°C (14°F to +113°F) | Dimensions Φ78.5 mm × 90.5 mm × 127.8 mm