LoRaWAN Non-Contact Liquid Level Sensor

An ultrasonic level sensor that measures liquid in a tank without touching it. It mounts on the outside of the tank bottom and reads the level through the wall, so there is no drilling, no seals to maintain and no contact with fuel, water or chemicals. Levels from 20 mm to 2,000 mm are reported over LoRaWAN with low power consumption for years of battery operation. On the NARA platform, readings become fill levels, consumption trends and refill alerts for water tanks, fuel tanks and process vessels.