Ultra mini submersible data logger with temperature & depth sensor - Star-Oddi
DST micro-TD small temperature and depth data storage tag
Data Storage Tag micro Temperature and Depth
Overview
Key features
- Suitable for tagging smolts and small fish or marine animals
- Can fit into small containers or vessels for sampling underwater
- Custom defined text printed on housings for recapture purposes
- Dimensions only 25.4 mm x 8.3 mm
- Long battery life in a small tag, typically 18 months
Description
The DST micro-TD is an ultra small temperature and depth (pressure) data storage tag. The recorded data is stored in the logger‘s internal memory with a real time clock reference for each measurement.
The data logger is supported by the SeaStar software 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 depth (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 software needs to be purchased with the first order.
Examples of Application
DST micro-TD is designed as a small archival tag for for fish and marine animal tagging, providing valuable scientific data on the specie being studied. The small sized DST enables fish biologists to tag smaller species and smolts that little information exist on. DST micro-TD is also used as a stand-alone logger in situations where it can be fit into tight spaces for sampling.
DST micro-TD is suitable for various studies:
- Fish and marine animal tagging (internally or externally)
- Agricultural and cattle research projects
- Temperature and pressure measurement in liquids, vials, and vessels (containers).
- Any other field where temperature and pressure recording is required
You can read more about research studies and other applications of the DSTs here.
Technical Specifications
| Sensors | Temperature and pressure (depth) |
|---|---|
| Size (diameter x length) | 8.3mm x 25.4mm |
| Housing material | Alumina (Ceramic) |
| Weight (in air/in water) | in air: 3.3g in water: 1.9g |
| Memory type | Non-volatile EEPROM |
| Memory capacity | 43,000 measurements |
| Memory capacity bytes | 65,214 bytes / temperature 1.5 bytes, pressure 1.5 bytes |
| Memory management | - Custom programming - Primary and Secondary parameters |
| Temperature resolution | 0.032°C (0.058°F) |
| Temperature accuracy | +/- 0.2 °C (+/- 0.36°F) |
| Temperature range | -1 to +40°C (30.2°F to 104°F) |
| Temperature response time | Time constant (63%) reached in 12 sec. |
| Standard depth ranges | 1m-150m, 1m-300m or 5m-1000 m |
| Depth resolution | 0.08% of selected range |
| Depth accuracy | +/- 0.5% of selected 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 |
| Communications | Communication Box, RS-232C 9 pin serial or USB |
| Attachment hole | (diameter) 0.5 mm |
| Battery life | 18 months* |
** Divided between two parameters
Specifications may change without notice.
