... (12V-24V); 4 Alarm logic inputs New Program Software Released!More Easier,More Professional,More Reliable!The GSM Controller RTU5010/RTU5011 is ... in control within GSM is free of charge. (it only checks the caller’s number and - if the number is authorized - responds with ... Card : Supporting 3V SIM Card>>Antenna : 50 Ω SMA Antenna interface>>Serial : RS-232C, Default communication parameter 9600,n,8,0,1 ...