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The PWT Series wet/wet differential pressure sensors provide reliable, accurate measurement and control of many applications, including pump differential pressure, chiller/boiler differential pressure drop, and CW/HW system differential pressure.


  • The PWT Pressure Sensors incorporate microprocessor profiled sensors for exceptional accuracy and reliability.
  • Field-selectable 4-20 mA, 0-5 Vdc, or 0-10 Vdc output.
  • Jumper-selectable slow or fast response time.
  • Switch-selectable pressure ranges.
  • The jumper-selectable output switch for normal (4-20 mA) or reverse (20-4mA) operation provides application flexibility.
  • Rugged, die-cast enclosure provides NEMA 4 sealing.
  • Jumper-selectable port swap feature.
  • All models offer both push button and digital input to zero the output.

Product Specifications

Dimensions (in.)
4 in. high x 5 51/64 in. wide x 2 13/64 in. deep
Dimensions (mm)
102 mm high x 147 mm wide x 57 mm deep
Item Type
Operating Humidity Range (% RH)
10 to 90% RH, non-condensing
12 to 30 Vdc or 24 Vac
Operating Temperature Range (F)
14 F to 131 F
Operating Temperature Range (C)
-10 C to 55 C
Approvals, CE
4-20mA, 0-5Vdc or 0-10Vdc selectable
Connection Size (in.)
1/8 in. NPT female, stainless steel 17-4 PH
Pressure Range (psi)
0-100, 0-50, 0-20, 0-10 psid
±1% F.S. for 0-100, 0-50, 0-20 psid; ±2% F.S. for 0-10 psid
Proof pressure
2x max. F.S. range
Burst pressure
5x max. F.S. range
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