Description
The device enables remote monitoring of water level, fill level of tanks and silos, fill level of waste containers, presence of objects or snow level. It measures the distance between the sensor head and the target (rangefinder). The measurement principle is based on ultrasonic waves which are transmitted by the sensor and reflected back from nearby objects. Using the time of flight of the sound waves and the speed of sound (temperature compensated), the sensor computes the traveling distance and thus the distance to the object.
Region
Dragino LSN50v2-S31 - LoRaWAN Temperature & Humidity Sensor 
Ewattch Temperture and Humidity 
Dragino Temperature Probe - Standard 
Ewattch Electric Sub-Meter 
Dragino Waterproof Temp Sensor - Weaved Metal PT100 probe SI (-50 ~ 200 °C)
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