PME miniDOT Dissolved Oxygen Logger
Features
- Long-lasting sensor with stable calibration
- Up to 1-year battery life with user-replaceable batteries
- Also records time, date, and battery voltage
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 7450 | miniDOT dissolved oxygen & temperature logger | Check Price | In Stock | ||
 | 9190 | miniDOT dissolved oxygen & temperature logger & miniWIPER anti-fouling sensor wiper, requires 5945 bracket | Check Price | Usually ships in 1-2 weeks | ||
| Image | Part# | Product Description | Price | Stock | Order | |
|---|---|---|---|---|---|---|
 | 7286 | Communication cable, USB to micro USB | Check Price | In Stock | ||
 | 4405 | miniDOT anti-fouling copper mesh kit, includes copper plate | Check Price | Usually ships in 1-2 weeks | ||
 | 5950 | miniWIPER anti-fouling sensor wiper for miniDOT Logger, includes copper plate | Check Price | Usually ships in 1-2 weeks | ||
 | 5945 | miniDOT bracket attachment for miniWIPER | Check Price | Usually ships in 1-2 weeks | ||
| | 7436 | Logger maintenance kit, includes (5) O-rings & synthetic oil | Check Price | Usually ships in 3-5 days | ||
| | 7540 | miniDOT lithium battery, AA | Check Price | Usually ships in 1-2 weeks | ||
The miniDOT logger is a completely submersible instrument that logs dissolved oxygen and temperature measurements. It includes an optical DO sensor, a temperature sensor, batteries and a micro SD memory card. Data are recorded internally with a sample interval from once per minute to once per hour and can be offloaded to a computer via USB cable.
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. Each logger is factory-calibrated at 12 oxygen concentrations each at 8 temperatures for a total of 96 calibration points.
The PME miniDOT determines DO in water using an optode that measures flourescence.
The PME miniDOT includes free Java-based Windows software for configuration the logger and offloading data. The software will also compute oxygen saturation from the miniDOT logger measurements. A USB to micro USB cable is sold separately and required to communicate with the logger.
With a 1-minute sample interval, the logger will remain powered for approximately 1-year.
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