Miniature submersible temperature data logger with a timeline temperature sensor

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DST centi-T implantable temperature data logger

Cost effective temperature data logger


Key features

  • Self-contained temperature logger ideal for use in environmental temperature monitoring
  • High pressure survival up to 3000 m depth
  • Biocompatible housing suitable for implantation in animals
  • Long battery life of 9 years
  • Small sized logger with dimensions 46 mm x 15 mm
  • Large memory of 174,000 measurements (can be extended)


The DST centi-T is a miniature submersible temperature data logger.  Recorded data is stored in its internal memory with a real-time clock reference for each measurement.

The self-contained temperature logger is supported by the SeaStar software and the Communication Box which serves as an interface between the logger and a PC. Communication between the logger and the Communication Box is wireless.

In SeaStar, the user sets the start time, start date and sampling interval before starting the recorder. Up to seven different intervals can be set for the same measurement sequence. This is especially useful when more frequent measurements are needed at a certain time period.
After recovering the DST recorded data is uploaded via to SeaStar where results are displayed both in graphic and tabular form. After retrieving the data, the DST can be re-programmed and reused as long as the battery lasts.
A set of Communication Box and SeaStar software needs to be purchased with the first order.

Star-Oddi also offers protective logger housings for use at fixed locations or harsh environments.

For more information about accessories please click here.

Features on Request

Extended memory
DST centi-T and DST centi-TD can be delivered with an extended memory capacity of 523,800 measurements in total (DST centi-ex).

Temperature calibration outside standard range
Temperature calibration outside of standard ranges or for smaller ranges is available for all products on request.

Examples of Application

DST centi-T is mostly used as a stand-alone logger for sampling temperature in underwater environments, attached to deployment lines, moorings or other gear. It can also be used for measuring temperature in soil or air.  Another usage is measuring temperature values in animals. The DST centi-T can be implanted in animals. The housing is made of biocampitible material.

The DST centi-T temperature logger is used for various studies, for example:

  • Temperature fluctuations in animals
  • Thermistor chain in water columns
  • Temperature monitoring in oceans, rivers and lakes
  • Agricultural research projects
  • Aquaculture studies

Technical Specifications

Size (diameter x length)15mm x 46mm
Housing materialAlumina (Ceramic)
Weight (in air/in water)in air: 19g
in water: 12g
Memory typeNon-volatile EEPROM
Memory capacity174,000 measurements
Memory capacity bytes261,819 bytes / temperature 1.5 bytes
Memory extension option786,099 bytes (EEPROM memory)
Memory managementCustom programming
Data resolution12 bits
Temperature resolution 0.032°C (0.058°F)
Temperature accuracy +/-0.1°C (0.18°F)
Temperature rangeFor environmental research: -1°C to +40°C (30°F to 104°F)**
For biomedical research: 5 to +45°C (32°F to 113°F)
Temperature response timeTime constant (63%) reached in 20 sec.
Pressure toleranceUp to 3500m (customer specified)
Data retention25years
ClockReal time clock
Accuracy +/- 1 min/month
Sampling intervalIn second(s), minute(s), or hour(s)
Number of different sampling intervals1 to 7
CommunicationsCommunication Box, RS-232C 9 pin serial or USB
Attachment hole0.9 mm (in diameter)
Battery life9 years*
* For sampling interval of 10 minutes.
** Outside ranges available upon request.
Specifications may change without notice.

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