We are offering resurs-09 gsm / gprs-modem. Tri-band egsm 900 dcs 1800 pcs1900. output power egsm 900: 2w. output power dcs 1800 pcs1900: 1w. built-in timer automatically restart. support sim card: 1.8v or 3v. external interface: rs-485. the speed of data exchange via rs485: 9600 bit s (pre). supported software -wtune 1.1, schetchik.exe. range: up to 1000 meters. antenna connector: sma. mounting on din-rail. terminate resistance: 120 ohms. power supply: external power from 6 to 32 v. power consumption: less than 1a. operating temperature: -30 c to +55 c. storage temperature: -40 c to +65 c.