Implantable Activity and Temperature Logger

Overview of changes in animal activity over time. Minimally invasive, leadless and simple to implant.

Ideal for use in physiological and behavioral research on animals over 400g.

Key features

  • Leadless, minimally invasive
  • Small, size 13mm x 39.5mm and 12g
  • Long battery life – typically over one year
  • Stress-free long-term studies
  • Guaranteed accuracy and performance
  • Description

    Minimally Invasive

    The DST milli-ACT simultaneously measures long term activity and core body temperature in the animal. The logger is simple to implant and is made from ceramic housing to guarantee biocompatibility.

    For advice on implantation, please contact us.


    The logger is ideal for a variety of studies including those looking at behaviour, vaccine and stress response, in the fields of laboratory animal research, wildlife research and animal welfare.

    Overview of Changes in Animal Activity Over Time

    Measuring acceleration derived activity gives researchers the chance to get an overall view of changes in the study animals’ activity over time. The DST activity loggers measure acceleration in three dimensions, in relation to earth‘s gravity field. Each activity measurement is composed of a burst activity measurement over one minute with a chosen sampling frequency of 0.03Hz-10Hz.

    Stress-Free Long-Term Studies

    The logger has a battery life of over 13 months, when sampling every 15 minutes at 1Hz sampling frequency. The logger is especially useful when a comprehensive data set throughout the research is needed with no disturbance to the animal.

    Different Measurement Intervals

    Optionally, the loggers can be programmed with up to multiple different intervals within a measurement sequence. This can, for example, be useful when different intervals are preferred during the day or night and can save battery and memory at the same time.

    Guaranteed accuracy and performance

    Every logger is individually calibrated and comes with a calibration certificate. We guarantee the loggers’ accuracy and performance for one year after purchase.