Note: The electronic lock and the access controller are non-polar and the unlocking voltage is 12V. Please check the specifications of the unlocked power supply separately. The power adapter or POE power supply used by the user is 12V / 1A if you do not need a connection lock.<br /><br />How to install WiFi smart doorbell?<br />Install in an armored position to avoid direct sunlight or rain. Recommended installation height is 1.3~1.6m<br /><br />Server: P2P Cloudlink transmission, adaptive network<br />Network: WiFi 802.11 b / g / n or directly connected to the wired network<br />Audio: G.711 A compression mode<br />Call: 3 Dvoice voice engine technology full duplex call<br />Video format: H.264<br />Recording mode: manual recording, alarm recording, timer recording<br />External memory: Micro SD card, up to 128 GB<br />Camera: 1megapixels<br />Camera lens: 2.5mm, 110 degree wide angle<br />Night vision: infrared cutting without color difference, night vision black and white within 5 meters<br />Frame rate: 25 HD images (1280 * 720), SD (640 * 480), LD (320 * 240)<br />Alarm: motion detection, PIR detection, tamper alarm<br />Push: Send a message to your smartphone and send the image to your email settings<br />Data interface: TCP / IP, UDP, SMTP, DHCP, UPnP, ONVIF connected to NVR<br />AC adapter: DC9~16 V 1A or POE power supply via POE injector connector<br />Waterproof rating: IP44<br />Temperature / Humidity: -20~55 °C 10-95%hr<br />Weight: 750 grams