433MHz Tuya App-Controlled Wireless Smart Home Burglar Alarm System

Built-in doorbell function: the main unit’s connection button can act as a doorbell, reducing the need for multiple apps and simplifying your smart home setup. Compatible with Tuya app control over the 433MHz wireless protocol. Volume control: alarm loudness is adjustable across 16 steps (levels 0–15) to suit different environments. Schedule automation: create timetables to automatically arm and disarm the system at set times, preventing repeated daily actions or forgetting to secure the home. Flexible automation scenarios: supports intelligent linkage for various use cases and automated trigger chains. Expandable wireless network: the system can learn up to 4 remote controls and up to 50 wireless detectors.