CT2X Conductivity, Temperature Depth logger

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The CT2X is a rugged conductivity and temperature sensor with integrated datalogging, designed for accurate long-term water quality monitoring in demanding field environments. Capable of measuring conductivity, total dissolved solids (TDS), salinity, and temperature, with optional pressure measurement, the CT2X delivers reliable performance across a wide range of applications.

Built with a durable 4-pole epoxy and graphite electrode cell, the CT2X is highly resistant to fouling and electrical interference, making it ideal for harsh environmental conditions and continuous deployment.

Accurate & Reliable Water Quality Monitoring

The CT2X offers a wide conductivity measurement range from 10 µS/cm to 300,000 µS/cm, providing flexibility for monitoring everything from freshwater to highly saline environments.

Supported measurements include:

  • Conductivity

  • Temperature

  • Salinity

  • Total Dissolved Solids (TDS)

  • Optional Pressure / Level

The sensor supports both linear and nLFn temperature compensation for improved accuracy across varying water conditions.

Integrated Datalogging & Smart Software

With onboard non-volatile memory capable of storing up to 349,000 records, the CT2X is designed for autonomous monitoring and long-term deployments.

It is supplied with Aqua4Plus software from Seametrics (Modbus® protocol), providing powerful tools for:

  • Real-time monitoring

  • Flexible programming

  • Data visualisation

  • Easy export to spreadsheets and databases

Built for Rugged Field Conditions

The CT2X is engineered for durability, featuring robust construction materials including 316 stainless steel, fluoropolymer, and PTFE, with titanium options available for highly corrosive environments.

Key design features include:

  • Durable 4-pole epoxy and graphite electrode cell

  • Slim 0.75” diameter for easy deployment

  • Available in 12.5” or 16” lengths depending on model

  • Optional pressure and level measurement

  • In-field calibration utilities

  • Wide range of cable options including polyethylene, polyurethane, and FEP Teflon

Connectivity & Integration

The CT2X features a digital RS485 interface and is available with both Modbus and SDI-12 communication protocols, making it easy to integrate into a wide range of telemetry and monitoring systems.

Combining durability, flexible configuration, and high-capacity datalogging, the CT2X is an ideal solution for reliable conductivity and temperature monitoring in environmental, industrial, and groundwater applications.

Configuration Options

The CT2X is available as a cableless logger with internal battery (replaceable) for unattended logging deployments and as a cabled logger for integration with surface mounted datalogger or telemetry system.

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