433MHz GSM Wireless Home Alarm System for Tuya APP — Compatible with Motion Sensor, Easy to Use

Reliable alerting: On external power failure or when the built-in battery is low, the system sends both APP push and SMS notifications. When external power is restored you'll receive an APP push. Tamper events trigger an SMS notification. Phone contacts: Supports 5 preset alarm phone groups; for each group you can independently enable/disable SMS and dial (call) alerts. Scheduled security: Set automatic timing for arming and disarming so the system protects your home on a daily schedule. Flexible delays: Configure arm delay and alarm delay times to suit your needs. Camera integration: Works with a compatible camera so that on intrusion you can immediately view live footage remotely, speak through the device and scare away intruders.