PME miniDOT Dissolved Oxygen Logger

The miniDOT Logger is a completely submersible instrument that logs dissolved oxygen and temperature measurements.

Features

  • Long-lasting sensor with stable calibration
  • Up to 1-year battery life with user-replaceable batteries
  • Also records time, date, and battery voltage
List Price $$$$$
Your Price Check Price
In Stock
PME
Government and Educational PricingGovernment and Educational Pricing
Free Lifetime Tech SupportFree Lifetime Tech Support
Free Ground ShippingFree Ground Shipping
ImagePart#Product DescriptionPriceStockOrder
PME miniDOT Dissolved Oxygen Logger7450 miniDOT dissolved oxygen & temperature logger
Check Price
In Stock
PME miniDOT Dissolved Oxygen Logger 9190 miniDOT dissolved oxygen & temperature logger & miniWIPER anti-fouling sensor wiper, requires 5945 bracket
Check Price
Usually ships in 1-2 weeks
PME miniDOT Dissolved Oxygen Logger
7450
miniDOT dissolved oxygen & temperature logger
In Stock
Check Price
PME miniDOT Dissolved Oxygen Logger
9190
miniDOT dissolved oxygen & temperature logger & miniWIPER anti-fouling sensor wiper, requires 5945 bracket
Usually ships in 1-2 weeks
Check Price
ImagePart#Product DescriptionPriceStockOrder
PME USB Communication Cable 7286 Communication cable, USB to micro USB
Check Price
In Stock
PME miniDOT Anti-Fouling Copper Mesh Kit 4405 miniDOT anti-fouling copper mesh kit, includes copper plate
Check Price
Usually ships in 1-2 weeks
PME miniWIPER for miniDOT Logger 5950 miniWIPER anti-fouling sensor wiper for miniDOT Logger, includes copper plate
Check Price
Usually ships in 1-2 weeks
PME miniDOT Wiper Bracket Attachment 5945 miniDOT bracket attachment for miniWIPER
Check Price
Usually ships in 1-2 weeks
PME Logger Maintenance Kit 7436 Logger maintenance kit, includes (5) O-rings & synthetic oil
Check Price
Usually ships in 3-5 days
PME miniDOT Lithium Battery 7540 miniDOT lithium battery, AA
Check Price
Usually ships in 1-2 weeks
Communication cable, USB to micro USB
In Stock
Check Price
miniDOT anti-fouling copper mesh kit, includes copper plate
Usually ships in 1-2 weeks
Check Price
miniWIPER anti-fouling sensor wiper for miniDOT Logger, includes copper plate
Usually ships in 1-2 weeks
Check Price
miniDOT bracket attachment for miniWIPER
Usually ships in 1-2 weeks
Check Price
PME Logger Maintenance Kit
7436
Logger maintenance kit, includes (5) O-rings & synthetic oil
Usually ships in 3-5 days
Check Price
PME miniDOT Lithium Battery
7540
miniDOT lithium battery, AA
Usually ships in 1-2 weeks
Check Price

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.

Questions & Answers
How does the miniDOT measure dissolved oxygen?

The PME miniDOT determines DO in water using an optode that measures flourescence.

What software comes with the dissolved oxygen logger?

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.

How long will the battery last?

With a 1-minute sample interval, the logger will remain powered for approximately 1-year.

Please, mind that only logged in users can submit questions

In The News

Sewage an Unseen and Ignored Threat to Coral Reefs and Human Health

It’s an open, dirty secret that the ocean is used as the ultimate sewage solution. Each year trillions of gallons of untreated waste are sent to the ocean due to a widespread lack of sanitation technology or infrastructure that needs updating as cities and populations grow. As the impact of untreated sewage on the ocean becomes clearer, attention to the problem and strategies for dealing with it have not kept up. “This is a massive problem and it’s been largely ignored,” said Stephanie Wear, senior scientist and strategy advisor for The Nature Conservancy. Wear has turned her attention to raising the alarm about the effects of sewage on coral reefs, which often loses airtime to other pressing issues like climate change and overfishing.

Read More

Lake Superior Algal Blooms Surprise, Highlight Need for More Monitoring

In 2012, for maybe the first time, Lake Superior got scummy. Visitors to the Apostle Islands National Lakeshore reported algae washing up on shore around the park.  It was a marked shift for the park, made up of a portion of the Lake Superior lakeshore and nearby islands. The water surrounding the park is cold, clear and typically low in nutrients: a combination unlikely to result in algal blooms. But, in 2012 and again in 2018 after violent storms, major algal blooms—ones observed over multiple days—washed ashore and clogged the beaches with unsightly, scummy algae. Not the usual suspects The algal blooms of Lake Superior are not the algal blooms of warmer, more nutrient-rich lakes like Lake Erie.

Read More

Unprecedented Changes are a New Challenge for Lake Tanganyika

*This is part two of a series on changing ancient lakes. See part one, Lake Baikal, here . Ancient lakes are facing a suite of rapid, unprecedented anthropogenic changes. While ancient lakes are spread around the world and vary widely from lake to lake, their incredible age, which can reach into the tens of millions of years, makes them unique resources to science. They host incredible biodiversity and long sediment records. They are vital sources of food and water for millions of people. In a changing world, ancient lakes’ value as scientific and natural resources and the incredibly diverse life they contain is under threat.

Read More