GSM Smart Home Burglar Alarm Kit with App Control & Door Sensor — 5-Number Alert, APP Push & SMS Notifications

Instant alerts for power and battery events: the system sends APP push and SMS notifications if external power fails or the built-in battery is low, and sends an APP push when external power is restored. Tamper protection: a tamper alarm triggers an SMS notification. Multiple contact numbers: supports 5 groups of preset alarm phone numbers; you can individually set SMS on/off and dial on/off for each group. Scheduled arming: set timing arm and disarm in advance to automate daily security. Customizable delays: user-configurable arm delay and alarm delay let you tailor response timing. Camera support: work with camera — on intrusion you can immediately view the scene remotely, speak through the system and scare away intruders.