LM Liquid Level Sensor

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The LM Liquid Level Sensor incorporates stainless steel and plastic isolation features suitable for level sensing in water and other liquids. The LM uses a low cost stainless steel sensor in a PVC plastic fitting to be able to accurately and efficiently measure out water level readings without any issue.

The modular design of this sensor is adaptable to an infinite number of plastic port variations. With high performance in a small form factor, the LM enables the miniaturization of high accuracy pressure systems. The standard output is 4.5V with a 5V supply.

  • 4.5V (typ) High Level Output
  • 0psi - 1psi Pressure Range
  • ½ NPT Port
  • ±1% Accuracy
  • ±3.0% Total Error Band
  • -20°C - +70°C Operating Temperature
  • 12 inch Cable

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  • How does this work? It suggests it's a pressure sensor so my assumption would be that you screw it in to the bottom of a tank and it has a 0.5-4.5V output based on the pressure from the liquid level. So if you know the density of your liquid you can calculate the level. One of the applications suggested in the datasheet is for RV holding tanks, which is the application I'm trying to build, but the information is sparse on how best to implement it. Or I guess you could install it in the side of the tank near the bottom. Just trying to drag up my high school physics memory. :)

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