PT2X differential pressure sensor and logger has many uses

PT2X Wet/Wet Differential Smart Sensor with Data logging

  • Three Measurements in One Unit Measures differential pressure, temperature and time
  • Two Diaphragms Detects difference between pressure on the low side and pressure on the high side
  • Barometric Compensation Compensation utility for use with absolute sensors
  • Built-In Datalogger Non-volatile memory can store 520,000 records
Product Options


The PT2X Wet / Wet Differential Smart Sensor with integrated datalogger is the latest in pressure measurement technology. It contains two diaphragms which detect the difference between the pressure on the high side and the pressure on the low side.

The PT2X Wet Wet Differential Smart Sensor comes with powerful Aqua4Plus software. This easy to use software gives the user extensive control, including flexible programming, easy field calibration, real time monitoring and a delayed start feature.

This device is capable of networking several PT2X Wet/Wet sensors, or a combination of Smart Sensors together and control them from a single computer or wireless telemetry system.

Other features:

  • Measures pressure, temperature and time
  • Modbus protocol for RTU and PLC applications
  • Ranges available from 15 PSI to 500 PSI
  • Non-volatile memory
  • Stores over 130,000 records
  • Available with or without cable
  • Cable options available - polyethylene, polyurethane or PTFE/FEP
  • Powered with two AA batteries or with auxiliary power supply

Manufactured by: INW
Model: PT2X Wet/Wet Differential Smart Sensor with Data logging

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Used to replace analog sensors with separate data loggers
In pressure equalization applications, in corrosive and liquid environments
Flow measurement


Length 13.55" (34.4 cm) cabled
13.272" (33.7 cm) cableless
Diameter 0.75" (1.9 cm)
Weight 0.8 lb. (0.4 kg)
Body Material Delrin® & 316 stainless steel or titanium
Wire Seal Material Viton® and PTFE/FEP
Submersible Cable Polyurethane, polyethylene,
or FEP available
Protection Rating IP68, NEMA 6P
Desiccant 1-3 mm indicating silica gel (high or standard capacity)
Terminating Connector Available
Communication RS485 Modbus® RTU
SDI-12 (ver.1.3)
Direct Modbus Read Output 32-bit IEEE floating point
SDI-12 Output ASCII
Internal Math 32-bit floating point
Operating Temp. Range3 -15° C to 55° C
Storage Temp. Range1 -40° C to 80° C
Memory 4MB - 520,000 records
Log Types Variable, user-defined,
logarithmic, profiled
Programmable Baud Rate 9600, 19200, 38400
Logging Rate 8x/sec maximum
Software Complimentary Aqua4Plus or Aqua-
Networking 32 available addresses per junction w/ batching capabilities (up to 255)
File Formats .xls / .csv / .a4d
Internal Battery 2x1.5V AA alkaline2
Auxiliary Power 12 VDC - Nominal
6-15VDC - Range
Exp. Alkaline Battery Life 18 months at 15m polling interval5
Element Type Digital IC on board
Accuracy ± 0.5° C
Resolution 0.1° C
Range -40° C to 80° C
Units Celsius, Fahrenheit, Kelvin
Transducer Type Silicon strain gauge
Transducer Material 316 stainless steel or titanium
Pressure Ranges PSID (differential) -
15, 30, 50, 100, 300, 500

mH2O (differential) -
10.5, 21, 35, 70, 210, 350
Common Mode Pressure 10x range or 1000 PSI
(whichever is lower)
Units PSI, FtH2O, inH2O, cmH2O,
mmH2O, mH2O, inHg, cmHg, mmHg,
Bars, mBars, kPa
Static Accuracy ± 0.05% FSO (typical)
± 0.1% FSO (maximum)
(B.F.S.L. 20° C)
Resolution 0.0034% FS (typical)
Maximum Operating Pressure 1.1 x FS
Burst Pressure4 3.0 x FS
Compensated Range 0° C to 40° C
1 Storage without batteries
2 Lithium available upon request
3 Requires freeze protection kit if in water below freezing
4 Burst reduced at PSI>300
5 May vary due to environmental factors