gsm security alarm system Saful G3 doorbell Intelligent home security

1. Wireless frequency: 315/433/868/915MHz,2262/1.5-4.7M,EV1527/300K2. GSM frequency: 900/1800/850/1900MHz (quad band)3. Standby Current:<25mA, Alarm current:<450mA4.Power requirements: AC110V ~AC 240V, 50Hz/60HzWorking consumption:< 0.6W   Backup battery: DC7.4V/850MABackup battery working hours: ≥8 hours5. Working conditiontemperature: -30°C~+60°Chumidity: ≤95% (non-condensation)6. Siren loudness:15-110dB7. Record time: 10s    



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