Small implantable temperature data logger DST milli-T

Small implantable temperature data logger DST milli-T


Temperature sensor for implantation inside the animal body. Dedicated for ferrets, sheep, pigs, dogs and larger animals, also for aquatic animals.

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Small implantable temperature data logger DST milli-T

Key features:

  • Biocompatible housing, ideal for implantation in animals for temperature monitoring
  • Waterproof data logger up to 90 bar (900 m)
  • Small dimensions 39,4 mm x 13 mm, 9,2 g
  • Large memory size of 87,000 measurements
  • Long battery life, typically 5 years


The DST milli-T is a small waterproof temperature data logger.  Recorded data is stored in the logger‘s internal memory with a real time reference for each measurement.

The DST milli-T is supported by the SeaStar and Mercury softwares and the Communication Box (data reader) which serves as an interface between the logger and a PC.  Communication between the logger and the Communication Box is wireless.

In the software, the user sets the start time, start date and sampling interval before starting the recorder. After the measuring period the recorded data is uploaded into a PC computer through the Communication Box. Results are displayed both in graphic and tabular form in the SeaStar software. After retrieving the data, the DST can be re-programmed and reused as long as the battery lasts. Battery life can be several years, depending on sampling interval and usage. Battery is not replaceable.

A set of Communication Box and SeaStar (or Mercury) software needs to be purchased with the first order.

Star-Oddi also offers a protective housing for the DST which protects the logger when used in harsh environments and gives more flexible mounting options.

Technical datasheet

Sensor temperature
Size (diameter x length) 13 mm x 39,5 mm
Housing material alumina (ceramic)
Weight (in air/in water) 9,2 g / 5 g
Memory type non-volatile EEPROM
Memory capacity 87 000 measurements
Data resolution 12 bits
Temperature resolution 0,032°C (0,058°F)
Temperature accuracy +/- 0,1°C (0,18°F)
Temperature range for biomedical research: 5 to +45°C (32°F to 113°F)
for environmental research:: -1°C to +40°C (30°F to 104°F)
Pressure tolerance up to 900 m (customer defined)
Data retention 25 years
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 (diameter)
Battery life 5 years *

*For sampling interval of 10 minutes.

Specifications may change without notice.

Studies with DST-milli T with ferrets:

van den Brand J, Helgadóttir B, Stittelaar K, Bjarnason Á, de Waal L, de Swart R, Kuiken T, Osterhaus A.
The use of Star-Oddi temperature loggers in laboratory animal experiments for pathogenesis research and evaluation of prevention and treatment of infectious diseases. Presented at the 13th Annual Meeting of Safety Pharmacology Society (SPS) September 16-19, 2013.

Kreijtz JHCM, Kroeze EV, Stittelaar KJ,  de Waal L, van Amerongen G,  Van Trierum S, Van Run P,  Bestebroer T, Kuiken T, Fouchier RAM, Rimmelzwaan GF, Osterhaus ADME.
Low pathogenic avian influenza A(H7N9) virus causes high mortality in ferrets upon intratracheal challenge: A model to study intervention strategies. Vaccine (2013) Oct 9; 31(43):4995-4999.