Submersible pressure transducer

Seawater resistentSDI-12 digital outputModbus RTU
Submersible pressure transducer ·

Submersible pressure transducer


  • Lakes, rivers and canals
  • High water endangered areas
  • Water reservoir
  • Dams
  • Water management

Highly precise even under pressure

The FTS Submersible PT provides outstanding Total Error Band (TEB) accuracy for reliable, accurate measurements in real-world conditions. The FTS Submersible PT is ideally suited for environmental monitoring applications such as surface water, streams, and reservoirs using existing SDI-12 monitoring equipment. The FTS Submersible PT is ideal for remote applications where battery-powered operation with minimal current draw and networking multiple sensors to a data recorder are required. And, the included lightning protection makes it more robust for installation in areas prone to high current and voltage transients.

  • Standard ±0.1 % FS TEB or optional USGS OSW accuracies available
  • Meets OSW spec on ranges up to 70 ft W.C. from 0...40 °C.
  • 16-bit internal digital error correction for cost-effective low Total Error Band (TEB)
  • 316L stainless construction standard · optional titanium for severe applications.
  • Built in the U.S.A. · ARRA Section 1605 Compliant.  

Link to the manual on the FTS website.

Professional Line
Submersible pressure transducer
Meas. range pressure:
Infinite between 0...3 mm and 0...900 ft W.C. *)
Accuarcy temperature:
typ. ± 0.3 °C
Accuracy pressure:
Standard ±0.1% FS TEB
Optional ±0.01 ft WC when reading ≤ 10ftWC or ±0.1% of reading >10 ftWC
Resolution temperature:
< 0.01 °C
Resolution pressure:
0.0005 % FS
SDI-12 • RS485
Range of application:
-10...80 °C
Power supply:
6...32 VDC
Current consumption:
< 5.5 mA • < 0.1 mA (Standby)
Load resistance:
< (Supply-6 V)/0.0055 A
Baud rate:
1200 bits/s
Length 95 mm • Ø 21 mm
316 L Stainless Steel • Titanium (optional) • Polyamide • Fluorocarbon
Protection class:
IP 68
CE: EN50081-1, EN50082-2
Polyethylene for general purpose • Hytrel for hydrocarbon • Tefzel for chemical interaction
Accessories (order separately):
18639: Cable for SDI-PT-KEL - per meter
SDI-SPT-INT-FL: Desiccant Enclosure

*) Level range may be specified in units of bar, mbar, mH2O, psi, ftWC, or inWC