NML-308 Liquid Level Transducer

Brand: KOBOLD Instruments, Inc

KOBOLD NML-308 liquid level transducers are miniature synthetic (nonmetallic wetted parts) float level transducers suitable for level measurement in vessels of up to 48 inches in height.

Floats are made from PTFE. Tubes are 316 stainless steel, clad with PFA or PTFE. Fittings are available in polyethylene (PE), polypropylene (PP), PVC or PTFE.

The use of 1-1/4" or 1-1/2" NPT fittings accommodate the diameter of the float and allow the level transducer to be installed from the top of the vessel, or mounting bracket, without removing the float.

Each plastic NML-308 miniature float level transducer comes standard with a cable or a 4-pin micro-DC plug. Custom cables are available.

The transmitted level signal is converted to a 4-20 mA analog signal via a remotely mounted DIN rail transmitter.
  • All Plastic Wetted Parts
  • All PTFE Wetted Parts Available
  • Excellent for Use with Aggressive Chemicals
  • Continuous Level Measurement
  • Analog Output via Remote Mount Transmitter
  • Compact Design
  • Undisturbed by Foaming
  • Vapor Insensitive
  • Liquid Interface Detection


Measuring Length

  • 6” to 48”


  • ± 1/4”


  • 1-1/4” NPT
  • 1-1/2” NPT

Fitting Material

  • PE
  • PP
  • PVC
  • PTFE

Maximum Operating Temperature

  • 140° F to 250° F

Maximum Pressure

  • 25 psig


  • NEMA 4X/IP65

Input Voltage

  • 12-32 Vdc


  • 4-20 mA 2-wire
  • 0-5 Vdc 3-wire
  • 0-10 Vdc 3-wire


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