Must be noted: Battery is not in the normal order package, if you need the battery for power off alarm, please order from other link seperately. (in this order, not include the Plastic housing, only the control board). It has sixteen independent relay switches, and the NO. It has other 15 independent relay switches which can be switched on or off by sending the GSM-AIR an sms text message.16 channels 250V 10A 50 Hz relay contacts. Relays operates almost every appliance. Small standby power (< 10mA 12V). Relay memory after power failure.
Optional password to keep the system at safety operating mode. Two operating mode optional (remote setting with GSM phones). Working voltage is at DC12V. On board rechargeable battery for power off alarm. Go to google Play store and Iphone app store to search keyword : " GSM RELAY ".Applications include the remote control of heating in holiday homes, lighting and so on. Special designed GSM antenna for water proof box , 3 meter wire length. Applications include the remote control of heating in holiday homes, lighting, engine pre-heaters, aviation engine heaters, irrigation systems, water well pumps, pumping stations, cabin heaters, resetting of remote servers, arming and disarming security systems, access control of gates and garage doors. The item "GSM SMS 16 relay output remote switch for industrial wireless remote control" is in sale since Friday, November 3, 2017. This item is in the category "Consumer Electronics\Surveillance & Smart Home Electronics\Other Smart Home Electronics". The seller is "dsindustrie" and is located in HONG KONG. This item can be shipped worldwide.