GSM Telemetry Alarm

UK manufactured GSM 3G Auto Dialler – Alarm Monitoring. It works on both
2G and 3G frequency with and texts or calls to alert you to a problem
Quad band frequency 850/900/1800/1900/2100 MHz. Power Supply Voltage: 9 to 24
volts DC. Standard 2G or 3G simcard. Dimensions – L170 x W120 x H60mm
Signal strength function. Stay Active simcard Function. Watchdog and
self repair function. 2 Inputs.