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DST CT is the smallest salinity logger on the world market that measures and records conductivity (salinity) and temperature. Recorded data is stored in the logger‘s internal memory with a real-time reference for each measurement.

Data Storage Tag Conductivity and Temperature


Dimensions (diameter x length): 15mm x 46mm
Sensors: Conductivity (salinity), temperature
Standard temperature range: -1°C to +40°C
Temperature accuracy: +/-0.1°C
Standard conductivity ranges: 3 to 37 mS/cm and 13 to 50 mS/cm
Salinity accuracy: +/-1 PSU
Memory size: 130,826 measurements per sensor
Battery life: 4 years
Housing material: Alumina (ceramic material)

The DST CT 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 SeaStar, 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.

After recovering the DST recorded data is uploaded to SeaStar 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.

The DST CT is suitable for studies:

* Oceanography
* Marine biology & ecology
* Marine animal tagging (externally), and many more

Envco can provide a special plastic protective housing for attaching to deployment lines, buoys, or moorings.

Sensors: Conductivity (salinity) and temperature
Size (diameter x length): 15mm x 46mm
Housing material: Alumina (Ceramic)
Weight (in air/in water): 21g /13g
Battery life: 4 years
Memory type: Non-volatile EEPROM
Memory capacity: 261,900 measurements
Memory capacity bytes: 392,478 bytes / conductivity-temperature 3 bytes
Memory management: Custom programming
Data resolution: 12 bits
Temperature resolution: 0.032°C
Temperature accuracy: +/-0.1°C
Temperature range: -1°C to +40°C
Temperature response time: Time constant (63%) reached in 20 sec.
Conductivity ranges: Available ranges (customer specified): 1) 3 to 37 mS/cm 2) 13 to 50 mS/cm
Conductivity resolution: 0.04 mS/cm
Conductivity accuracy: +/-1.5 mS/cm
Salinity range: Depends on conductivity range selected
Salinity resolution: 0.02 PSU
Salinity accuracy: +/-1 (PSU)

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: 0.9 mm (in diameter)