... protecting, data surveying and remote monitoring in shops, villas, financial offices and departments of electricity, .1: Wireless GSM alarm ... : DC12V/1A Standby Current: <55mA Alarming Current: <450mA Wireless Frequency: 315MHz/433MhzGSM Frequency: 900/ 1800/ 1900MHz Back-up ... wieless sensor does can accept? It can accept unlimited wireless sensors including door, PIR sensor, vibration sensors, smoke ...