OTT CTD, 13 ft, Alkaline

OTT CTD, 13 ft, Alkaline

Product Number: CTD004MAL

Measuring Range

Battery Type

Price: Contact Us
Talk to an Expert

The OTT CTD is an integrated sensor and datalogger for measurement of water level, temperature, and conductivity in groundwater and surface water applications.
It features a robust ceramic measuring cell for long term accuracy and has outputs for salinity and total dissolved solids (TDS). Its built in datalogger manages and stores all measurements at user-programmable intervals.


  • Groundwater
  • Water Quality


Complete Solution

Pressure sensor with built-in data logger manages and stores pressure, depth to water, water level (stage), temperature measurements as well as conductivity at programmable intervals.

Conductivity measurement

Outputs for conductivity include specific conductivity, salinity, and total dissolved solids.


Long-term accuracy: a robust ceramic pressure cell will not deform over time, and an accurate 4-electrode conductivity measuring cell provides outputs for salinity and total dissolved solids (TDS).

High Performance

Mechanical resistance to pressure overload and corrosive waters.

Flexible Installation

Easily installs in wells or pipes of 1 inch diameter or larger with use of convenient adapter plates.

Simple Maintenance

Infrared interface, batteries, and desiccant are accessible at the top of the well or pipe and no tools are required.