PG-103 Wireless WiFi GSM Alarm System for TUYA App — Smart Home Kit with Metal Detector Window & Door Sensors

The PG-103 alarm system uses both Wi-Fi and GSM/GPRS networks for reliable home security. It supports multiple alarm channels and delivers alerts via app push notifications, SMS, voice monitoring and central-station alarm to maintain stable, dependable performance. The system supports 8 languages: English, Chinese, German, Italian, Spanish, Russian, Polish, and French. If an alarm is triggered, the host records a 20 seconds alarm voice, then dials preset numbers and plays the recorded message.