... medium acousto-optic alarm, a handle, four door GSM Wireless Home Security Alarm SystemProducts: product packaging neutral + box + boxEquipped with: four ... : 3.2/5KGSpecification:Power supply: Input AC 110V; 220V; 230-240V Frequency: 315MHz/433MHz Stand-by current: < 20mA Alarm current: < 150mA ... Temperature range: -10 ~ 50 degree Relative humidity: < 90% GSM Wireless Home Security Alarm System