Mini data logger that measures & records temperature and pressure
DST milli-TD mini pressure (depth) and temperature logger
Data Storage Tag milli Temperature and Depth
- Ideal for use in underwater environments and animal tagging for behavioral studies
- Accurate depth measurements in a small logger, better than +/-0.4% full scale
- Available with a shallow water 20 m pressure sensor, optimizing the depth accuracy (+/-8 cm)
- Small dimensions of 38.4 mm x 13 mm
- Long battery life, typically 3 years
- Optional plastic protective housing and tag holder kits available, depending on the application
The DST milli-TD is a mini pressure (depth) and temperature data logger. Recorded data is stored in the logger‘s internal memory with a real time clock reference for each measurement.
The autonomous depth temperature recording device is supported by SeaStar and Mercury softwares 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 the 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 period.
With default programming temperature and pressure are recorded as pairs. Optionally, they can be set as primary and secondary parameters with different sampling frequency. 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. 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 (or Mercury) software needs to be purchased with the first order.
Star-Oddi offers protective logger housings for use as a stand-alone logger at fixed locations or in harsh environments.
For more information about accessories please click here.
Features on Request
DST milli-T, DST milli-TD and DST milli-L are available with an extended memory capacity of 682,000 measurements in total (DST milli-F, with FLASH memory). Please note that the FLASH memory consumes a little more energy from the batteries.
Temperature calibration outside standard range
Temperature calibration outside standard ranges is available for all products upon request.
Examples of Application
DST milli-TD is designed as an archival tag for for fish and marine animal tagging, providing information on the animals behavior. The DST milli-TD is widely used as a stand-alone logger for sampling underwater and on land. The DST can be fastened to fishing gear or other underwater equipment, collecting valuable data.
The DST milli-TD is suitable for use within e.g.:
- Fish and marine animal tagging (internally or externally)
- Fishing gear studies
- Marine biology
- Agricultural and cattle research projects
- Ecosystems research
- Temperature and pressure measurement in liquids, vials etc.
- Pharmaceutical research studies
- Any other field where temperature and pressure recording is required
You can read more about research studies and other applications of the DSTs here.
|Sensors||Temperature and pressure (depth)|
|Size (diameter x length)||13mm x 38.4mm|
|Housing material||Alumina (Ceramic)|
|Weight (in air/in water)||in air: 9.2g|
in water: 5g
|Memory type||Non-volatile EEPROM|
Optional FLASH memory (milli-F)
|Memory capacity||87,000 measurements in total*|
|Memory capacity bytes||130,750 bytes / temperature 1.5 bytes, pressure 1.5 bytes|
|Memory extension option||FLASH memory 682,000 measurements in total / 1,048,064 bytes*|
|Memory management||- Custom programming|
- Primary and secondary parameter
|Data resolution||12 bits|
|Temperature resolution||0.032°C (0.058°F)|
|Temperature accuracy||All types: +/-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 12 sec.|
|Standard depth ranges||0.1m-20m, 0.1m-50m, 0.1m-100m, 1m-250m, 5m-500m, 5m-800m|
|Depth resolution||0.03% of selected range|
|Depth accuracy||+/-0.4% of selected range for 20m to 500m range, +/-0.6% of selected range for 800m range|
|Depth response time||Immediate|
|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 (number of measurements is defined within each interval)|
|Communications||Communication Box, RS-232C 9 pin serial and USB|
|Attachment hole||0.9 mm (in diameter)|
|Battery life||3 years***|
** Outside ranges available upon request.
*** For sampling interval of 10 minutes; temperature and pressure recorded simultaneously.
Specifications may change without notice.