Aquatic & Fisheries DST micro Star-Oddi.com

Temperature and Depth/Pressure Recording Tag

The smallest TD logger on the market!

Overview:
Sensors: Temperature and depth (or temp. only)
Memory size: 21738 measurements pr. sensor
Battery life: 24 months
Housing: Biocampatible material-ideal for internal tagging
Depth ranges: 150 m, 300 m, or 1000 m

DST micro
The small TD logger is a Data Storage Tag that measures two parameters, temperature and depth (pressure), and stores the measurements in memory.  All measurements are time related, utilizing a real time clock inside the tag.  The tag is based on an ultra small microprocessor and microelectronics.  The DST housing is made of biocompatible material. The user can put its own text on housing to facilitate return.

Research applications
DST micro is specially intended for studying behaviour of small fish e.g salmon smolt, herring mackerel.  The tag can be applied externally or implanted into the fish, although internal tagging method is recommended for salmon smolts.  The small size makes it possible to tag small salmon before they start sea migration.  This means that it is possible to sample information on the total roundtrip of salmon from smolt to grilse stage.  The biocompatible housing material makes it ideal for implantation in animals, since the animal accepts the tag as an organ and forms tissue around it.  The small size of the DST micro opens up many other possibilities for monitoring depth/pressure and/or temperature inside small containers, vials and animals. 


Easy to use
Communications and data transfer is wireless through the communication box and no need for opening the tag (logger).  The DST micro TD logger can be reused as long as battery inside lasts.  Prior to use the start time and sampling interval are set.  The DST can be operated with up to 7 different sampling intervals within a measurement sequence, which can be convenient if more frequent measurements are needed. After recapture of tag, the data is retrieved with the communication box, using the SeaStar Windows software. 

Technical Specifications - DST micro 

Size (diameter x length)	8.3 mm x 25.4 mm
Volume	1.4 cm3
Weight (in air / in water)	3.3g / 1.9g
Temperature range	-1 to +40°C (30.2°F to 104°F)
Depth ranges	150 m, 300 m, or 1000 m
Memory capacity	21738 measurements pr. sensor*
Resolution temperature	0.032°C (0.058°F)
Resolution depth	0.08% of selected range
Accuracy temperature	+/- 0.2 °C (+/- 0.36°F)
Accuracy depth	+/- 0.5% of selected range
Response time temperature	20 second time constant (63%)
Response time depth	Immediate
Number of sampling intervals	1 to 7
Sampling interval	Seconds, minutes, or hours
Start date and sampling interval	User programmable
Battery life	24 months**
Data retention	25 years
Attachment hole	(diameter) 0.5 mm

* If depth sensor is skipped memory will double.
**For sampling of 15 min. or greater.

Specifications may change without notice.