Seametrics CT2X Conductivity, Salinity, TDS & Temperature Data Logger

from $1,621.00
Configuration:

Brand: Seametrics

The Seametrics CT2X is a smart submersible conductivity, salinity, TDS, and temperature sensor with built-in data logging for groundwater, surface water, environmental monitoring, and industrial water applications. Optional pressure and level measurement allow users to combine water quality and water level data in one rugged field instrument.

Key-Benefiits

  • Measures conductivity, salinity, TDS, and temperature in one sensor

  • Optional water level and pressure monitoring

  • High-accuracy 4-electrode conductivity technology

  • Internal memory stores hundreds of thousands of measurements

  • SDI-12 and Modbus RTU communications

  • Rugged submersible design for long-term deployments

  • Compatible with telemetry, PLC, SCADA, and data logging systems

  • Ideal for groundwater, surface water, stormwater, aquaculture, and environmental monitoring applications

Brand: Seametrics

The Seametrics CT2X is a smart submersible conductivity, salinity, TDS, and temperature sensor with built-in data logging for groundwater, surface water, environmental monitoring, and industrial water applications. Optional pressure and level measurement allow users to combine water quality and water level data in one rugged field instrument.

Key-Benefiits

  • Measures conductivity, salinity, TDS, and temperature in one sensor

  • Optional water level and pressure monitoring

  • High-accuracy 4-electrode conductivity technology

  • Internal memory stores hundreds of thousands of measurements

  • SDI-12 and Modbus RTU communications

  • Rugged submersible design for long-term deployments

  • Compatible with telemetry, PLC, SCADA, and data logging systems

  • Ideal for groundwater, surface water, stormwater, aquaculture, and environmental monitoring applications

CT2X Product Configuration Request

Use this form to help configure your Seametrics CT2X Conductivity, Salinity, TDS & Temperature Data Logger. Submit your selections to request pricing, lead time, and application support.

Contact Information

Application Type

Measurement Options

Housing Material

Communication / Output

Cable Length

Power Preference

Project Notes


water quality sensors and data loggers for conductivity measurement

The CT2X is suitable for:

  • Groundwater monitoring

  • Saltwater intrusion studies

  • Surface water conductivity monitoring

  • Wetland restoration projects

  • Agricultural runoff monitoring

  • Watershed studies

  • Stormwater monitoring

  • Environmental compliance programs

  • Aquaculture and hatcheries

  • Industrial process water monitoring

  • Landfill leachate monitoring

  • Water treatment plant monitoring

  • Discharge permit monitoring

  • Mining water quality studies

  • Reservoir and lake monitoring


The Seametrics CT2X Smart Sensor combines conductivity, salinity, total dissolved solids (TDS), temperature, and optional water level monitoring into a single rugged submersible instrument. Designed for environmental, groundwater, surface water, and industrial monitoring applications, the CT2X delivers reliable, high-accuracy measurements while storing hundreds of thousands of records internally for long-term unattended deployment.

At the heart of the CT2X is advanced 4-electrode conductivity technology, providing stable and accurate measurements across a wide conductivity range. This proven design minimizes polarization effects, reduces measurement errors caused by electrode fouling, and delivers dependable performance in changing water conditions. The durable epoxy-graphite sensing element is engineered for harsh field environments and can be quickly cleaned with a simple brush, minimizing maintenance and downtime.

For users requiring water level data, the optional pressure sensor incorporates a highly stable, temperature-compensated piezoelectric sensing element, allowing conductivity and level measurements to be collected simultaneously from a single deployment. Integrated temperature measurement ensures accurate compensation and improved data quality under varying environmental conditions.

The CT2X operates on two replaceable AA batteries for extended field deployments, or can be powered externally for continuous monitoring and data-intensive applications. Multiple sensors can be networked together, creating a scalable monitoring system for wells, lakes, rivers, reservoirs, wetlands, treatment facilities, and industrial process water applications.

Whether you're collecting standalone field data or integrating into an existing monitoring network, the CT2X offers exceptional flexibility. Modbus RTU and SDI-12 communication protocols allow seamless integration with telemetry systems, data loggers, PLCs, SCADA systems, and remote monitoring platforms. Users can configure and retrieve data using the free Seametrics Aqua4Plus® software or communicate directly through their preferred software and control systems.


CT2X Cable Options

7A23540 PU Standard Cable, 9-Cond., Braided, Vented (per foot)

7A23542 HDPE Standard Cable, 9-Cond., Braided, Vented w/Kevlar (per foot)

7A23564 ETFE Standard Cable, 9-Cond., Braided, Vented w/Kevlar (per foot)

7A23562 PU Standard Cable, 5-Cond., Braided, Non-Vented w/Kevlar (per foot)

7A23554 PU Economy Cable 5-Cond., Mylar Non-Vented (per foot)


CT2X Technical Specifications

The Seametrics CT2X is a rugged submersible conductivity, salinity, TDS, and temperature data logger designed for environmental monitoring, groundwater studies, saltwater intrusion monitoring, agricultural runoff, discharge monitoring, and long-term field deployment.

Specification CT2X Details
Measured Parameters Conductivity, salinity, total dissolved solids (TDS), and temperature
Optional Measurement Depth / water level option available
Conductivity Range 0 to 300,000 µS/cm
Conductivity Technology 4-pole electrode cell measurement technology
Conductivity Element Durable epoxy / graphite sensing element
Temperature Compensation Linear and nLFn temperature compensation
Temperature Sensor Thermistor-based temperature measurement
Data Logging Memory Up to 349,000 records in non-volatile memory
Communication Modbus RTU over RS485 and SDI-12
Software Compatible with Seametrics Aqua4Plus 2.0 software
Power Two replaceable AA batteries or external auxiliary power supply
Sensor Diameter 0.75 in. / 1.9 cm compact diameter
Housing Options 316 stainless steel or titanium options available
Networking Multiple CT2X sensors or other Seametrics Smart Sensors can be networked together
Typical Applications Groundwater monitoring, wetland surveys, saltwater intrusion studies, agricultural runoff, discharge monitoring, surface water monitoring, and environmental compliance
Need help selecting the right CT2X configuration?
AWM Instruments can help determine the appropriate conductivity range, cable length, housing material, depth/level option, telemetry compatibility, and deployment setup for your application.

Request a CT2X Configuration Quote

Contact AWM Instruments for pricing, lead time, and application assistance.

Request a Quote
  • What does the CT2X measure?

    The CT2X measures conductivity, salinity, total dissolved solids (TDS), and temperature. Optional models also measure water level and pressure.

    Can the CT2X be used in groundwater wells?

    Yes. Its narrow 0.75-inch diameter allows deployment in monitoring wells and environmental boreholes.

    Does the CT2X include data logging?

    Yes. The internal memory stores up to 349,000 records.

    Can the CT2X connect to telemetry systems?

    Yes. The CT2X supports RS485, Modbus RTU, and SDI-12 communications.

    Is titanium available?

    Yes. Titanium housing options are available for corrosive environments.

    How is the CT2X powered?

    The sensor can operate using internal AA batteries or an external power source.