Smart sensor and RTU 2-in-1 LoRaWAN terminal from the Polysense iEdge 4.0 line. NDIR propane (R290), range -1% to 50% LFL, resolution 0.1% LFL. It measures propane concentration as a percentage of the lower flammable limit and reports the readings over a LoRaWAN network. The OD outputs can switch external devices such as relays, beepers or fans when a reading or a remote command triggers them.
Specifications as published by Polysense.