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FT60 – Downhole Submersible Level Sensors

The FT downhole submersible liquid level sensor indicates the level of liquid by continuously measuring hydro-static pressure with a sophisticated sensing element.

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Product Description

The downhole submersible liquid level sensor indicates the level of a fluid by continuously measuring hydrostatic pressure. Also known as the head pressure, hydrostatic pressure is the pressure exerted by the fluid in the vessel. The level of hydrostatic pressure as measured by the level sensor is determined by two things: the density of the liquid and its height. With liquid density remaining constant, changes in the pressure necessarily reflect a difference in the liquid level. Submersible level sensors consist of a sensor attached to a long cable, which is then lowered to the bottom of the liquid vessel.  

This design provides for excellent linearity and repeatability, low hysteresis and long term stability. The FT sensor is easy to install. All the electronics are mounted in a submersible stainless steel housing.

The Submersible Hydrostatic Level Sensor is ideal for harsh environments like tanks. The sensor sits at the bottom of a tank or vessel with a long lead line. Based on the pressure exerted on it by the liquid medium above, the weight, as well as the volume, can be determined. Along with the total vessel capacity, this can be used to calculate internal liquid levels. Downhole Submersible Level Sensors are also capable of continuous level sensing and capable of environmental applications like ultrasonic sensors.


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More About Submersible Level Sensors:

Sensors with No Moving Parts | Submersible Level Blogs | Flood Detection Systems

Additional information

Switch Type


Max Switching Current

4-20 mA

Max Switching Voltage

10-35 VDC

Max Temp


Max Pressure

300 psig

Specific Gravity


Supply Current


Supply Voltage