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



As the Levelogger App Interface will not connect directly to the top of a Solinst datalogger, it is necessary to have connection accessories. With the Levelogger or Rainlogger, one of the following accessories is required:

  • Direct Read Cable, clients use this option to suspend dataloggers in the field when they wish to communicate downhole.
  • When working with Leveloggers that are suspended from wireline, or cord, the units must be removed from the well and connected to either a Direct Read Cable (as above) or an Optical Adaptor.
  • For the LevelVent, just connect to the unit via the Vented Cable and LevelVent Wellhead that all units are suspended from in the field – no other connection accessories are required.
  • The AquaVent communication connection is made from the App Interface to the AquaVent Wellhead using an App Connector Cable that is ordered separately.
The Levelogger App Interface is portable hardware that connects to the top of your Levelogger via a Direct Read Cable/Adaptor, to a LevelVent Wellhead, or to an AquaVent Wellhead cable. Bluetooth wireless technology allows communication between the Levelogger App Interface and the smart device with the app installed. It allows viewing/downloading of data, and programming of Solinst dataloggers, as well as many other features.
Solinst offers a wide range of dataloggers that can be used with the Leveloggger App Interface. They include the complete, current Levelogger Edge range of units (Edge, Junior Edge, LTC Edge, Rainlogger Edge), previous Gold Leveloggers/Barologgers, and the latest vented datalogger editions, the AquaVent and LevelVent.
  • Program and start dataloggers in the field.
  • Simplify data management in the field by transporting and using less equipment.
  • View real-time readings.
  • Download and e-mail logged data files.
  • Calibrate LTC Leveloggers (NEW).
  • Run the diagnostic utility (NEW) – used for troubleshooting

Leveloggers. Provides detailed information on the datalogger,
and includes options for running a self-test, doing a memory
dump and creating/emailing reports.

The most recent version of the Android App available is 1.2.5 but that is only available for download if your Android device has Android version 8 (oreo) or above. That means, any device running older Android versions can not download the most recent App-This is a restriction that Google has set.