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T: 514-354-2511
T: 1 800 463-4363
F: 514-354-6948
Logger | DST bird Temperature and light logger Environment

Logger | DST bird Temperature and light logger

Product Code:

Need more Info? (514) 354-2511 - 1-800-463-4363

The DST bird geolocator is a very small logger with light level and temperature sensors. 

Recorded data is stored in the logger‘s internal memory with a real time clock reference for each measurement. For activating the geolocator it is inserted into the communication box which serves as an interface between the logger and a PC computer. In the SeaStar software, 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 periods. With default programming light and temperature are recorded as pairs. Optionally, they can be set as primary and secondary parameters with different sampling intervals. That way memory partitioning can be customized according to individual preferences.

After recovering the DST recorded data is uploaded in the supporting software where results are displayed both in graphic and tabular form. Data can also be imported as text file into more advanced softwares for geolocation analysing.  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.

Key features

  • Geolocator for birds, for studying their long distance migration patterns
  • Data can be imported into advanced software packages for geolocation analysis
  • Also suitable for other studies such as monitoring light levels and temperature in sediments
  • Small dimensions of 19 mm x 8.5 mm x 8.5 mm, weighs only 2 g in air
  • Pressure survival down to 150 m


Dimensions 12mm x 6mm x 5mm
Sensors Temperature and light
Standard temperature range -2°C to +30°C
Temperature accuracy +/-0.5°C
Light range 10-900 lux
Light accuracy +/-25 lux
Memory size 52,000 measurements in total
Battery life 355 days
Housing material Epoxy


DST bird is designed as a geolocator for tagging birds to collect information on bird migration tracking. The very small and lightweight tag opens up possibilities for bird scientists to tag small birds that little migration information exist on. The geolocator has an attachment hole of 2 mm in diameter and a cable tie is supplied with each unit. With large amount of temperature and light datapoints from tags, the scientist is able to analyse bird migration route with approximate geolocation (latitude and longitude) at given dates and times by importing data into advanced software packages.

The DST bird is suitable for use within:

  • Bird geolocation studies for bird migration tracking
  • Sediment monitoring



Sensors Temperature and light
Size (diameter x length) 19 mm x 8.5 mm x 8.5 mm
Housing material Epoxy
Weight (in air/in water) 2 g
Memory type Non volatile EEPROM
Memory capacity 52,000 measurements in total*
Memory capacity bytes 65,214 bytes / temp 1.25 byte, light 1.25 byte
Memory management Custom programming. Primary and Secondary parameters programming option
Data resolution 10 bit
Temperature resolution 0.1°C
Light resolution 2 lux
Temperature accuracy +/-0.5°C
Light accuracy +/-25 lux
Temperature range 0°C to +30°C **
Light range 10 - 400 lux
Temperature response time Time constant (63%) reached in 18 sec.
Pressure tolerance Down to ~150 m
Data retention 25 years
Clock Real time clock. Accuracy +/-1 min/month
Sampling interval Second(s), minute(s) or hour(s)
Number of different sampling intervals 1 to 7 within same sequence
Communications Wireless through communication box that connects to PC computer
(9 pin serial or USB)
Attachment hole 2 mm in diameter
Battery life 18 months***
* Divided between temperature and light
** Contact Star-Oddi for usage outside 0-30°C.
*** For sampling interval of 10 min or greater Specifications may change without notice

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