gsm security alarm system Saful G3 doorbell Intelligent home security
Specifications 1. Wireless frequency: 315/433/868/915MHz,2262/1.5-4.7M,EV1527/300K 2. GSM frequency: 900/1800/850/1900MHz (quad band) 3. Standby Current:
Specifications 1. Wireless frequency: 315/433/868/915MHz,2262/1.5-4.7M,EV1527/300K 2. GSM frequency: 900/1800/850/1900MHz (quad band) 3. Standby Current: