Mikro ctd- loggerit

DST centi - T

Data Storage Tag centi-Temperature 


Dimensions (diameter x length): 15 mm x 46 mm
Sensor: Temperature
Standard temperature range: -1°C to +40°C
Temperature accuracy: +/-0.1°C
Memory size: 174,000 measurements (optional 523,800)
Battery life: 7 years
Housing material: Alumina (implantable, biocompatible ceramic material)


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

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 DST centi-T is suitable for studies in e.g.:

  • Temperature fluctuations in animals
  • Oceanography
  • Marine biology
  • Hydrology
  • Agricultural research projects
  • Aquaculture studies
  • Pharmaceutical research studies
  • Any other field where temperature recording is required.

Technical Specifications

Sensors Temperature
Size (diameter x length) 15mm x 46mm
Housing material Alumina (Ceramic)
Weight (in air/in water) in air: 19g in water: 12g
Battery life 7 years
Memory type Non-volatile EEPROM
Memory capacity 174,000 measurements
Memory capacity bytes 261,819 bytes / temperature 1.5 bytes
Memory extension option 786,099 bytes (EEPROM memory)
Memory management Custom programming
Data resolution 12 bits
Temperature resolution 0.032°C (0.058°F)
Temperature accuracy +/-0.1°C (0.18°F)
Temperature range -1°C to +40°C (30°F to 104°F)
Temperature response time Time constant (63%) reached in 20 sec.
Pressure tolerance Up to 3500m (customer specified)
Data retention 25years
Clock Real time clock Accuracy +/- 1 min/month
Sampling interval In second(s), minute(s), or hour(s)
Number of different sampling intervals 1 to 7
Communications Communication Box, RS-232C 9 pin serial or USB
Attachment hole 0.9 mm (in diameter)
* For sampling interval of 10 minutes. ** Outside ranges available upon request. Specifications may