GSM 433MHz Wireless Home Burglar Alarm System — Tuya APP Compatible, High Sound

Instant alerts and flexible control: The system sends APP push and SMS notifications for external power failure and built-in battery low power. When external power is restored you receive an APP push. Tamper triggers an SMS notification. Call/SMS settings: Supports 5 groups of preset alarm phone numbers. SMS on/off and dial on/off can be configured independently for each group. Scheduled arming: Program automatic timing to arm and disarm the system in advance for daily convenience and safety. Adjustable delays: Users can set both arm delay and alarm delay to match their needs. Camera support: Integrates with a camera so that on intrusion you can immediately access a live view, speak remotely and scare away intruders.