More about the miniDOT® Logger
- User replaceable batteries
- 100 Meter depth rating
- Shipped calibrated
- Portable and easy to use
The miniDOT Logger measures dissolved oxygen in water and is completely self contained. It includes an optical DO sensor, a temperature sensor, batteries and a micro SD memory card. The logger collects measurements of dissolved oxygen with an accuracy of +/- 5% and temperature to +/- 0.1 degrees C. All measurements are stored internally. Data can be offloaded to a computer via the miniDOT USB cable. Temperature range is 0 to 35 degrees C with an accuracy of +/- 0.1 degrees C. Oxygen range is 0 to 150% saturation with an accuracy of +/- 10 umole/L.
PME also has an anti-fouling wiper compatible with the miniDOT Logger. Increase your data longevity by using the PME wiper. More about the miniWIPER.
Logger Information & Sensor Specifications
The miniDOT sensor is an optode that measures lifetime-based luminescence quenching of a thin membrane. The sensing foil contains a coating that has a variable fluorescence that depends upon oxygen concentration in the surrounding water. The sensor is able to compute oxygen concentration in mg/L and record these measurements internally. Every miniDOT logger is calibrated at PME headquarters. PME calibrates each logger at 12 oxygen concentrations each at 8 temperatures for a total of 96 calibration points. The miniDOT Logger can sample any where between once every minute to once every hour. Contact PME for sample intervals outside this range.
Sample Interval Minutes | Days of Sampling | Number of Samples |
---|---|---|
1 | 365 | 500K |
10 | 365 + | 52,000 + |
60 | 365 + | 8,000 + |
Product Case Studies
Device Software
Software is provided with every miniDOT Logger and can be found on the micro SD card once connected to a computer. The software displays the miniDOT Logger files and creates visual plots to easily read oxygen measurements. The software also allows the user to set the internal clock and determine a sample rate.

Downloads & Resources
Product Software
Device Manuals
Product Brochures
BASIC OPERATIONS AND ANTI-FOULING OPTIONS
Learn the basics of operating PME’s miniDOT Logger in this short video along with the anti-fouling options available. If you need support with your miniDOT Logger, reach out to our team.