The GSM SMS Controller-Alarm S140 is a universal GSM Remote Control switch and GSM Alarm Unit. it provides 4 digital inputs, 2 relay outputs( 3A@ 240VAC, one is link-output relay, special for switch....
King Pigeon is a professional GSM Alarms, GSM Alarm Systems, GSM SMS Alarm, GSM SMS Controller, Wireless GSM Home Alarm system, GSM Indutrial Alarm, GSM Telemetry, GSM M2M OEM ODM Manufacturer for 5....
modbus gsm rtu, modbus gprs rtu, modbus rtu modbus gsm rtu, modbus gprs rtu, modbus rtu Modbus GPRS RTU S240 equipped Siemens MC55i quad-band GPRS Module inside, is a low cost, M2M, data logger, ....