Measuring the level of fluids and solids through the use of ultrasonic sensors is an industry standard. Devices, that function by measuring the reflection time of an ultrasonic wave from the surface of a fluid or bulk materials, offer high precision and reliability of the measurement. The Supmea brand offers many kinds of ultrasonic probes, one of which is  the Sup-MP series ultrasonic level transmitter..  The device features a high quality measurement system, allowing for e.g.  temperature compensation in the measurement.

Technical specification:
* Measuring range: 0-5 or 0-10m,
* Probe dead zone: 0,35m,
* Accuracy: 0,5% FS.
* Supply voltage: 18-28VDC,
* Analog output: 4-20mA, max. current loop resistance 750ohm,
* Communication: Modbus RTU throughh RS485 (option), 2 transmitters 3A, 250V (option).