Smart sensor and RTU 2-in-1 LoRaWAN terminal from the Polysense iEdge 4.0 line. Manhole cover opening monitoring, battery powered. It detects when a manhole cover is opened and reports the event 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.