LoRaWAN ® modem GM - 2 is designed to take readings from Elster gas meters, with subsequent accumulation and transmission of this information to the LoRaWAN ® network .
The modem is equipped with Hall sensors, one of which counts the current meter readings, and the other is located in such a way and has such a level of sensitivity that it reacts only to the presence of an external magnetic field (for example, when a strong magnet is placed near the gas meter to disable the counting mechanism) . . .
To protect against unauthorized access, the modem has an opening sensor. There are also two security entrances and two control exits.
The modem is powered by a SAFT 3600 mAh battery. The modem operates as LoRaWAN device ® class A.