Ubiquiti Protect G4 Doorbell Black, White

Certification: FCC, IC, CE | Bell width: 4.68 cm | Connectivity technology: Wireless | Best uses: Home, Office | Megapixel (approx.): 2 MP | Card reader integrated: No | Operating temperature (T-T): -10 - 40 °C | Vertical field of view: 114° | Bell height: 11.8 cm | Mounting bracket(s) included: Yes | Operating relative humidity (H-H): 0 - 90% | Diagonal field of view: 155° | Reset button: Yes | PIR detector: Yes | LED type: IR | Maximum video resolution: 1600 x 1200 pixels | Echo cancellation: Yes | Built-in speaker(s): Yes | Built-in camera: Yes | Product colour: White | Product colour: Black | Wi-Fi: Yes | AC input frequency: 50 - 60 Hz | Input voltage: 16-24 V | Sensor type: CMOS | Maximum frame rate: 30 fps | Housing material: Polycarbonate (PC) | Wi-Fi standards: 802.11a | Horizontal field of view: 138° | Waterproof: Yes | Power source type: AC | Built-in microphone: Yes | Night vision: Yes | Bell depth: 2.58 cm