PT2X Groundwater Data Logger

  • Several Versions Available Absolute, gauge or sealed gauge versions
  • Choice of Logging Capabilities 130,000, 260,000 or 520,000 records
  • Easy to Use Software Aqua4Plus Software allows simple set-up, data retrieval and export
  • Proven in UK to BEST IN CLASS Independent testing by leading organisation
Product Options


The PT2X groundwater data logger is a submersible integrated temperature and water level data logger ideal for groundwater monitoring and water level monitoring projects.

It is suitable for a wide range of applications including:

  • River, stream and reservoir gauging
  • Pump testing and slug tests
  • Stormwater runoff monitoring
  • Well, tank and tidal levels
  • Wetland monitoring

The PT2X groundwater water level datalogger is available in absolute, gauge or sealed gauge versions and also comes with a choice of datalogging capabilities between 130,000 records, 260,000 records and 520,000 records. A variety of cable options are available - polyethylene, polyurethane or PTFE/FEP.

The PT2X groundwater data logger has a rugged construction and is built from 316 stainless steel, Viton and PTFE/FEP and has a diameter of just 0.75". A titanium construction is optional.

It is powered by two internal AA batteries and has the option of an external 12VDC power supply.

The groundwater datalogger stores its data in non volatile memory, ensuring no data is lost in the event of power failure.

The easy to use Aqua4Plus software allows the user to be up and running in minutes. Data can be viewed in real time and also exported to spreadsheets and databases.

Aqua4Push Data Upload Utility is available for automatic scheduled data collection from multiple sensors with optional FTP upload.

Other features:

  • Modbus and SDI-12 protocols available.
  • Typical accuracy of ± 0.06% FSO
  • Thermally compensated sensor
  • Easy to use Aqua4Plus software
  • Ideal for groundwater level monitoring
  • Easily networked with other Smart Sensors
  • Wireless connectivity

Manufactured by: INW
Model: PT2X Groundwater Data Logger

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


River, stream and reservoir gauging
Pump and slug tests
Stormwater runoff monitoring
Well, tank and tidal levels
Wetland monitoring


Length 11.875" (30.2 cm) cabled
11.625" (29.5 cm) cableless
Diameter 0.75" (1.9 cm)
Weight 0.8 lb. (0.4 kg)
Body Material Delrin® & 316 stainless steel or
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
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 interval6
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 Gauge
FtH2O5 - 2.3, 5.8, 12, 35, 69, 115, 231, 692
mH2O5 - 0.7, 1.75, 3.5, 10.5, 21, 35, 70, 210
FtH2O5 - 46, 69, 115, 231, 692
mH2O5 - 14, 21, 35, 70, 210

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 Higher pressure ratings available upon request
6 May vary due to environmental factors


Related products


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.