Onset HOBO Dissolved Oxygen Logger

The Onset HOBO U26 Dissolved Oxygen Logger measures and records oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters.

Features

  • Affordable, high performance dissolved oxygen (DO) monitoring with 0.2 mg/L accuracy
  • Optical DO sensor technology for long-lasting calibration with less maintenance
  • Requires HOBOware Pro Software and optic base station or waterproof shuttle
Your Price $1,350.00
Stock 2AVAILABLE

Overview
The Onset HOBO U26 Dissolved Oxygen Logger measures and records oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters. The affordable and precise HOBO U26 data logger is recommended for aquatic biology and hydrology research projects. The Onset U26 Dissolved Oxygen Logger is the ideal tool for environmental impact studies as well as ecological and oceanographic research in freshwater and saltwater environments.

Rugged Dissolved Oxygen Technology
The HOBO Dissolved Oxygen logger is a standalone logger that uses RDO Basic Technology to measure dissolved oxygen (DO). The logger has an optical sensor that provides 0.2 mg/L accuracy. The logger also features an easily replaceable sensor cap and an integrated temperature sensor. Using the data offloaded from the Onset HOBO U26 logger, the HOBOware Dissolved Oxygen Assistant can calculate percent saturation and salinity-adjusted DO concentration as well as correct for measurement drift from fouling (additional meter or logger measurements required).

Dissolved Oxygen  
  Sensor Type: Optical
  Measurement Range: 0 to 30 mg/L
  Calibrated Range: 0 to 20 mg/L; 0 to 35°C (32 to 95°F)
  Accuracy: ± 0.2 mg/L up to 8 mg/L; ± 0.5 mg/L from 8 to 20 mg/L
  Resolution: 0.02 mg/L
  Response Time: To 90% in less than 2 minutes
  DO Sensor Cap Life: 6 months, cap expires 7 months after initialization
Temperature  
  Temperature Measurement/Operating Range: -5 to 40°C (23 to 104°F); non-Freezing
  Temperature Accuracy: 0.2°C (0.36°F)
  Temperature Resolution: 0.02°C (0.04°F)
  Response Time: To 90% in less than 30 minutes
Logger  
  Memory: 21,700 sets of DO and temperature measurements (64 KB total memory)
  Logging Rate: 1 minute to 18 hours
  Time Accuracy: ±1 minute per month at 0 to 50°C (32 to 122°F)
  Battery: 3.6 V lithium battery; factory replaceable
  Battery Life: 3 years (at 5 minute logging)
  Download Type: Optical
  Depth Rating: 100 m (328 ft)
  Buoyancy: Salt water: 13 g (0.46 oz) negative | Fresh water: 20 g (0.71 oz) negative
  Wetted Materials: Black Delrin®, PVC, EPDM o-rings, silicone bronze screws; rated for saltwater use
  Size: 39.6 mm diameter x 266.7 mm length (1.56 x 10.5 inches)
  Weight: 272.4 g (9.61 oz)
  Environmental Rating: IP68
  • HOBO U26-001 Dissolved Oxygen Data Logger
  • Dissolved oxygen sensor cap
  • Protective guard
  • Calibration boot and sponge
Questions & Answers
No Questions
Did you find what you were looking for?

Select Options

  Products 0 Item Selected
Image
Part #
Description
Price
Stock
Quantity
Onset HOBO Dissolved Oxygen Logger
U26-001
HOBO dissolved oxygen & temperature logger
Your Price $1,350.00
2 Available
  Accessories 0 Item Selected
Notice: At least 1 product is not available to purchase online
×
Multiple Products

have been added to your cart

There are items in your cart.

Cart Subtotal: $xxx.xx

Go to Checkout

In The News

Lake Malawi: A Treasure to Protect

Lake Malawi (also known as Lake Nyasa and Lake Niassa) doubles as a Rift Valley Lake and one of the seven African Great Lakes. Due to its unique biodiversity, it’s a great place to conduct limnological studies. Harvey Bootsma is a professor for the School of Freshwater Sciences at the University of Wisconsin-Milwaukee and has had an interest in limnology ever since he was a kid. Bootsma fondly recalls summer vacations to Georgian Bay, Ontario, “I probably spent as much time in the water as I did out of it.” He continues,”I remember telling myself ‘I’m going to get a job where I can stay here all the time.’” While Harvey didn’t end up working on Georgian Bay, he was offered a job working on Lake Malawi. He continued working there while completing his Ph.D.

Read More

Microbes and Human Health: Aquatic Microbial Communities May Hold Clues about How Deadly Pathogens Spread

Aquatic ecosystems are incredibly complex, with many different biotic and abiotic factors constantly interacting. Microbial communities are a key part of aquatic ecosystems, involved in the constant flow of energy and recycling of organic matter, according to Science Direct .  The true scope of microbial community impacts on aquatic ecosystems is still not entirely understood. Eric Benbow, a professor of community ecology at Michigan State University, is exploring how microbial communities and pathogens may be negatively impacting human health, and how a changing climate could worsen this problem.  How Do Pathogens Arise? Benbow, along with his students and colleagues, are studying a realm of community ecology that is still relatively unknown.

Read More

Winter 2023 Environmental Monitor Available Now

In this issue, we showcase researchers from across the globe and the importance of monitoring and protecting biodiversity in a variety of ecosystems. From endangered freshwater mussels across the U.S. to vegetation in the Amazon Rainforest , this latest edition highlights the importance of species of all sizes. Through monitoring various parameters, researchers spent the year gathering data and constructing management plans to protect these valuable species. Our writers also sought out science professionals that are dedicated to protecting nature’s most vulnerable through traditional and more contemporary methods.

Read More