Underwater temperature recorder with real-time clock reference
Starmon mini - underwater temperature recorder
Reliable and durable for demanding environments
Overview
Key features
- Self-contained temperature recorder designed for use in oceans, rivers and lakes
- Robust and non-corrosive housing, plastic or titanium
- Deep ocean applications in a titanium housing (11 km survival)
- Compact size (25 mm x 130 mm)
- Temperature accuracy better than +/-0.025°C or +/-0.05°C
- Long battery life of 10 years (replaceable battery)
Description
Starmon mini is an underwater temperature recorder designed to withstand harsh environments. Starmon mini measures and records temperature and stores the data into its internal memory with a real-time clock reference for each measurement. Starmon mini submersible temperature recorder is known for its high accuracy, reliability and durability. Each recorder is delivered with a calibration certificate.
By unscrewing the end cap of the housing a cable plug becomes accessible. The Communication Cable connects directly from recorder to a PC computer. In addition to the cable the SeaStar software is used. In SeaStar the user sets the start time, start date and sampling interval before starting the recorder. After the recorder has been recovered, Starmon mini is connected to a PC and the recorded data is downloaded into the SeaStar software. Results are displayed both in graphic and tabular form.
A set of PC communication cable and SeaStar software needs to be purchased with the first order. Starmon mini has a non-corrosive and robust plastic housing. For more extreme pressures/depths or higher temperatures, the Starmon mini is available in titanium housing. A stainless steel protective housing for extra protection is also available. For more information about accessories please click here.
Features on Request
Star-Oddi offers Starmon mini with temperature calibration outside standard range, for high temperature measurements up to 90°C. The hi-temp recorder is supplied in titanium housing. An option for the housing is to have a 1/2" thread to screw on pipelines. Please contact Star-Oddi with your requirements.
Starmon mini - Product brochure (PDF) 
Examples of Application
Starmon mini is a reliable and durable temperature logger for various researches in oceans, rivers and lakes. The logger can be easily attached to moorings, deployment lines, buoys and nets. Examples of fields where Starmon mini temperature recorder is used:
- Oceanography
- Limnology
- Aquaculture
- Ecology
- Hydrology
- Marine Biology
- Fisheries research
- Geothermal and boreholes
- Oil and gas projects
- Any environment where temperature measurements are required
Technical Specifications
| Sensors | Temperature |
|---|---|
| Size (diameter x length) | 25mm x 130mm |
| Housing material | Plastic or Titanium |
| Weight (in air/in water) | Plastic housing: 80g Titanium housing: 170g |
| Memory type | Non-volatile EEPROM |
| Memory capacity | 262,000 measurements in Starmon mini with 0.025°C accuracy. 350,000 measurements in Starmon mini with 0.05°C accuracy. |
| Memory capacity bytes | 524,000 bytes. Temperature measurements: 2.0 bytes in Starmon mini with 0.025°C and 1.5 bytes in Starmon mini with 0.05°C accuracy |
| Memory extension option | 787,500 bytes or 1,048,500 bytes |
| Memory management | Custom programming |
| Temperature resolution | 0.001°C (0.0018°F) or 0.013°C (0.023°F) |
| Temperature accuracy | +/-0.025°C (0.045°F) or +/-0.05°C (0.09°F) |
| Temperature range | -2°C to +40°C (28°F to 104°F) Outside ranges available upon request |
| Temperature response time | Plastic: Time constant (67%) is 18 sec. and final value reached in 3 min. Titanium: Time constant (67%) is 6 sec. and final value reached in 1 min. |
| Data retention | 25 years |
| Clock | Real time clock Accuracy +/-1 min/month |
| Sampling interval | From 1 second up to 90 hours |
| Number of different sampling intervals | 1 or 2 |
| Communications | 9 pin RS-232C standard serial interface or USB |
| Battery life | 10 years* |
**For a 40°C (104°F) temperature step response in stirred liquid
Specifications may change without notice.
