... RTU5010; GSM Telemetry; GSM Terminals; 4 relay drivable outputs(12V-24V); 4 Alarm logic inputs New Program Software Released!More ... /1900MHz Network, .>>>>>Specifications of Mainframe: >>Power adapter : DC 12V/1.5A>>Power consumption: 12V input, Max. 50mA/Average 50mA>>Frequency : Quad-Band ... GSM SMS Controller Telemetry,RTU5010,gsm remote controller switch 12v dc output,RS232 config software