This document is the user manual for the wireless video door phone product, which introduces the product's features, appearance design, usage methods, installation methods and other information.
This manual describes the features of the Universalsec LB‑A video door phone, including a 2.4 GHz wireless link, 2.4" TFT color LCD monitor, CMOS 300,000‑pixel camera, night‑viewing LED, and built‑in rechargeable lithium battery. It also outlines the remote unlock function, 24‑hour monitoring, and photo storage capabilities.
The guide covers safety warnings, warranty terms, detailed installation steps for power adapters and E‑lock wiring, operation procedures for calling, talking, unlocking, and photographing, as well as troubleshooting and maintenance advice.
| Wireless launch frequency | 2.4 GHz |
|---|---|
| Remote control distance | 180‑400 m |
| Display | 2.4" digital color LCD |
| Camera resolution | CMOS 300,000 pixel |
| Outdoor unit power supply | 12 V/1 A DC transformer |
| Indoor unit power supply | 5 V/1 A DC transformer |
| Battery type | High‑capacity rechargeable lithium battery |
The remote control works between 180 and 400 meters.
Press the Unlock button on the monitor; it sends a wireless signal to the camera’s E‑lock, which opens the lock.
Charge the battery for 2‑3 hours each time; avoid repeated charging or discharging while operating.