... GSM Alarm System for Home Security The GSM wireless SMS alarm product has large LCD screen with English menu ... for external power failture or recovey 3:Technical specifications: Input Voltage: DC12V/1A Standby Current: <55mA Alarming Current: <450mA Wireless ... It can accept unlimited wireless sensors including door, PIR sensor, vibration sensors, smoke sensor, gas sensor, water sensor etc. 3. Does ...