• MPX-F Flexible Magnetostrictive Float Level Transmitter
  • MPX-F is installed in an oil tank. Float rises and falls with oil.
  • MPX-F uncoiling as it is installed in a tank

Flexible Magnetostrictive Float Level Transmitter


Extra Flexibility For Your Extra-Long Measurements

The MPX-F features a 316L SS flexible tubing braided stem that uncoils easily for simple installation in tall tanks.


The MPX-F does almost everything you expect from an MPX, but with more flexibility. Its 316L SS flexible tubing with braided stem simplifies installation in tall tanks.

Modbus Output
The RS-485 Modbus RTU output makes the MPX compatible with any Modbus controller or PLC. It also simplifies wiring dramatically.

Tank Cloud Compatible
The MPX liquid level sensor is a Tank Cloud slave sensor, able to communicate via the Internet with the addition of an LOE Master sensor or an RST-5003 module. Flexible
The MPX-F is designed with ease of use in mind. The 316 SS flexible tubing stem coils for compact shipping, and with the stem weight attached, uncoils easily into your tank, so you no longer need an 40-foot crane to install a 20-foot probe in a 20-foot tank.
Common Applications
  • C I, D 1 Hazardous Locations
  • Tall Tanks
  • Oil/Water Interface Measurements
  • Thick, Viscous, Sludgy Fluids
  • Industrial Effluent
Datasheets & Downloads


Greater of ±0.04 in. (±1mm) or 0.05% of full range
Modbus: ±0.04 in. (±1mm)
4-20 mA: 14 bit DAC


Supply Voltage
12-24 VDC
Maximum Current Draw
Modbus: 28 mA
4-20 mA Single: 22 mA
4-20 mA Dual: 44 mA


Class I Division 2 Groups C & D T4 (Ta 85°C)
Class I, Zone 2; AEx nA IIB T4
Ex nA IIB T4


4-20 mA (Loop-powered 2 wire)
Dual 4-20 mA (Loop-powered 3 wire)
Modbus RTU (RS-485) with Temperature Output
Internet Connectivity
Tank Cloud LOE
RST-5003 Master


Optional RST-6001 USB to RS-485 converter
4-20 mA
Factory set or optional RST-4100 programming module


Cast aluminum, epoxy coated
7/8” ø Flexible Tubing with Braid, 316L SS
Stem Length
10 - 32 ft. (3.05 - 9.75 m)


Operating Temperature
-40° to 185° F (-40° to 85° C)
Protection Rating