The most popular device is the S12S submersible level transmitter with SDi-12 output, this can be supplied with various measurement ranges and cable lengths to suit the installation. There is also the S12C which is a ceramic based sensor with a Marine Bronze housing which is suitable for permanent submersion in estuary and seawater installations. […]
Submersible cable is more expensive because it has to be reinforced to support the sensor plus its own weight in deep holes without stretching which would lead to a change in sensor position and ultimately sensor calibration. A submersible cable also has a vent tube running through it to allow gauge reference pressure sensors access […]
Robust cable junction box for terminating vented electrical cable from a submersible level transmitter. vented to the outside air pressure.