The PME miniDOT logger is a submersible sensor designed to measure water temperature and dissolved oxygen concentration. Dissolved oxygen is measured by an optode that measures lifetime-based luminescence quenching of a thin membrane. The sensing foil contains a coating with a variable fluorescence depending on the oxygen concentration of the surrounding water. The miniDOT reports in milligrams per liter (mg/L) and logs all measurements to an internal SD card. Also featured is a temperature sensor and batteries. Data can be offloaded to a computer via USB cable. The logger has an accuracy of +/- 5 percent (+/- 0.3 mg/L) for oxygen, and +/- 0.1 degrees Celsius for temperature. Temperature range is 0 to 35 degrees Celsius, oxygen range is 0 to 150 percent saturation. Depth-rated to 300 meters.
Instrument description from the manufacturer: https://www.pme.com/products/minidot
Dataset Name | PI-Supplied Description | PI-Supplied Name |
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Temperature and dissolved oxygen recorded two PME Mindot O2 loggers in the Florida Keys from 11-17 July 2017 | PME Minidot O2 logger; Serial number 458147, 482789. Calibrations: factory calibrated. | PME Minidot O2 logger |
Dissolved oxygen and temperature from Nearshore Isla Natividad, Baja California Mexico from July to August of 2018 | PME MiniDots | |
Dissolved oxygen and temperature from PME miniDOT sensors recording at 1-minute intervals at various depths on instrument moorings inside and outside of kelp forests near the Monterey Peninsula, California, USA from June to August 2018 and 2019 | PME MiniDOT | |
Moored physical and chemical parameters measured by MiniDOT at El Rosario and Isla Natividad sites, Mexico | MiniDOT |