Oxygen Therapy Valves with LoRaWAN
summary
https://www.thethingsnetwork.org/ An oxygen-valve device with a digital gauge and LoRaWAN 1.0.3 connectivity reports cylinder pressure, open/closed state, temperature, audible/visible alarms and estimates time left and remaining gas, sending history to a cloud dashboard. It adds GPS localization and asset tracking for hospital, ambulance and home use, uses a replaceable battery claimed to last about ten years, and integrates with The Things Network and The Things Industries.
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