Rl-Sd7u-a Video Doorphone

Type: Video Doorphone / Home Intercom System. Power Supply: Requires an external adapter, as indicated by the "A" in the model name (RL-SD7U-A). Components: Typically includes an outdoor camera unit and an indoor monitor unit. Functionality: Allows for two-way audio communication, video monitoring, and remote unlocking of doors or gates. Display: Features a 7-inch TFT LCD monitor for clear video display. Additional Features: May include night vision, motion detection, and recording capabilities (often requiring an SD card).