TE KPSI 720 Hydrostatic Level Transducer


The KPSI 720 is a submersible hydrostatic level transducer specifically designed to meet the rigorous environments encountered in liquid level measurement and control. It can be configured to perform to specifications under most adverse, reactive conditions. Every KPSI Transducer utilizes a highly accurate pressure sensor assembly specifically designed for hostile fluids and gases. The assembly is integrated with supporting electronics in a durable waterproof housing constructed of 316 stainless steel or titanium. The attached electrical cable is custom manufactured and includes para-aramid synthetic fiber members to prevent errors due to cable elongation and a unique water block feature that self-seals in the event of accidental cuts to the cable. Each vented reference transducer is shipped with a Superdry Vent Filter that prevents moisture from entering the vent tube for one year without maintenance, even in the most humid environments.


  • Custom polyurethane or ETFE cable lengths
  • Welded 316SS or titanium body
  • Custom level ranges up to 700 ft. (210 m) H2O
  • Multiple analog outputs
  • Multiple nose piece styles
  • Optional lifetime lightning protection
  • Long life vent filter or aneroid bellows
  • Available molded cable seal


  • Lift stations
  • Pump control
  • Level control
  • Surface water monitoring
  • Landfill leachate
  • Well monitoring
  • Groundwater monitoring


Level Ranges
Full-scale level ranges
(Intermediate level ranges are available)
2.3 thru 700 ft. H20 (0.70 thru 210 m H20)
10 thru 700 ft. H20 (3 thru 210 m H20)
35 thru 700 ft. H20 (10 thru 210 m H20)
Vented Gage Reference
Sealed Gage Reference
Absolute Gage Reference
Proof pressure1.5 x FS
Burst pressure2.0 x FS
Static Performance
Static Accuracy
(combined effects of non-linearity, hysteresis
and repeatability, best fit straight-line method)
±0.25% FSOBFSL method
Resolution±0.0001% FS
Excitation9-28V – VDC output
9-28V – mA outpu
15-28V – VDC output
10-28V – VDC output
0-5V, 0-2.5V, 0-4V
Input current20 mA max
3.5 mA max
For mA output
For VDC output
Output4-20mA, 0-5 VDC, 0-2.5VDC,
0-4VDC, 0-10VDC, 1.5-7.5VDC
Zero OffsetRezero after installation for optimum accuracy. Span is not affected (See application note on website) 
Output ImpedanceSee loop diagram for mA output
20 ohm for VDC output
Insulation Resistance100 mega-ohm at 50 VDC 
Circuit ProtectionPolarity, surge/shorted output 
Approximate Weight0.5 lbs. (227 g) transducer
0.05 lbs./ft. (79 g/m) cable
Cable jacket materialPolyurethane (standard)
ETFE (optional)
Cable pull strength200 lbs. (90 kg) 
Cable number of conductors4
Cable conductor size22 AWG
Cable sealMolded polyurethane
FKM Gland
For polyurethane cable
For ETFE cable

Download Datasheet: TE Connectivity KPSI 720 Submersible Level Transducer

For further info please contact us, marketing@wmablog.com