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
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
The PME miniDOT is a submersible instrument that includes an optical dissolved oxygen sensor, a temperature sensor, batteries and a micro SD memory card. Data is recorded internally with a sample interval from once per minute to once per hour and can be offloaded to a computer via USB cable.
Internal Storage
The miniDOT sensor is an optode that measures lifetime-based luminescence quenching of a thin membrane. The sensing foil contains a coating with a variable fluorescence that depends on oxygen concentration in the surrounding water. The sensor can compute dissolved oxygen concentration in mg/L and record these measurements internally. Each logger is factory-calibrated at 12 dissolved oxygen concentrations, each at 8 temperatures, for a total of 96 calibration points.
Included with miniDOT logger (Part #7450):
- miniDOT dissolved oxygen logger
Included with miniDOT logger with wiper bundle (Part #9190):
- miniDOT dissolved oxygen logger
- miniWIPER anti-fouling sensor wiper
- miniWIPER bracket
- anti-fouling copper plate (with hardware)
Select Options
In The News
Thin Ice: Year-Long Monitoring in Missouri Reservoirs
The value of multi-lake studies is well understood by international organizations like the Global Lake Ecological Observatory Network (GLEON) and the scientists who work tirelessly to provide data to the larger network. Rebecca North, an associate professor at the University of Missouri-Columbia , is one of many researchers involved in multi-lake research initiatives and conducting research locally in her home state. Having been born and raised on the shore of Lake Ontario, North grew up in a community that revolved around water. She also saw firsthand one of the worst water quality bodies of the world, the Bay of Quinte, decline throughout her lifetime.
Read More
PME miniDOT Logger: Plunge into Data
The PME miniDOT Logger is a compact data logger that measures dissolved oxygen (DO) and temperature down to 100 meters in depth. The unit can also endure low water temperatures and is durable underneath an ice layer, which is excellent for gathering essential winter water quality data that is lacking from using less robust equipment. The high depth rating and ability to withstand frigid temperatures make the PME a reliable device that is deployable in dramatically different environments, such as a monitoring well, an inland lake or an underwater cave. The logger itself features an optical DO sensor, temperature sensor, two AA lithium batteries and a micro SD memory card.
Read More
Sargassum Surge: How Seaweed is Transforming our Oceans and Coastal Ecosystems
Until recently, Sargassum –a free-floating seaweed–was distributed throughout the Sargasso Sea , the north Caribbean Sea, and the Gulf of Mexico. But in the space of a decade, this seaweed has, as one scientist remarks , “Gone from a nonfactor to the source of a terrible crisis.” Driven by climate change, anomalous North Atlantic Oscillation in 2009-2010 and a glut of anthropogenic pollutants, sargassum has proliferated. Seasonally recurrent mats as deep as 7m now bloom in the “Great Atlantic Sargassum Belt” (GASB), which covers areas of the Atlantic from West Africa to the Caribbean Sea and Gulf of Mexico. Every year, millions of tons wash up along the shores of more than 30 countries . Dr.
Read More
