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:<25mA, Alarm current:<450mA 4.Power requirements: AC110V ~AC 240V, 50Hz/60Hz Working consumption:< 0.6W Backup battery: ...