Onset HOBO U26-001 Dissolved Oxygen Data Logger

HOBO® U26 High-Precision Optical Dissolved Oxygen Datalogger

Accurately Measures Dissolved Oxygen And Temperature With A Durable Optical Sensor, Delivering Reliable Data For Scientific Monitoring And Field Research.

The HOBO® U26 Dissolved Oxygen datalogger records dissolved oxygen concentration and water temperature with high precision and reliability. It uses an optical sensor that ensures long-term stability and eliminates accuracy drift over time.

The free HOBOware® software, available for Windows and Mac, allows you to download, visualize, and configure all instrument parameters such as date and time. Communication with the computer is done through the universal optical USB base station BASE-U-4 or the U-DTW-1 shuttle (not included).

Designed for harsh aquatic environments, the datalogger features a compact and corrosion-resistant construction that ensures long-term durability. The included lithium battery provides an extended operational lifespan before replacement is needed.

Key Features

• High-Precision Optical Sensor That Prevents Long-Term Accuracy Drift.
• Storage Capacity Of 21,700 Records For Extended Monitoring Sessions.
• Free HOBOware Software For Data Visualization And Configuration On Windows And Mac.
• Corrosion-Resistant Construction Rated For Operation Down To 100 M Depth.
• Long-Life Lithium Battery With Approximately 3 Years Of Operation.
• Compact And Lightweight Design For Easy Field Deployment.

• Specifications
• In the Box
• Required Items
• Documents

• Memory Capacity	21,700 Records
  Dissolved Oxygen - Range	0 to 30 mg/L
  Dissolved Oxygen - Resolution	0.02 mg/L
  Dissolved Oxygen - Accuracy	±0.2 mg/L
  Temperature - Range	-5 °C to 40 °C
  Temperature - Resolution	0.02 °C
  Temperature - Accuracy	±0.2 °C
  Power Supply Voltage	3.6 VDC
  Battery Type	1 × 1/2 AA Lithium
  Battery Life	Approx. 3 Years
  Output Signal	Optical
  Operating Temperature	-5 °C to 40 °C
  Maximum Depth	100 m
  Material	High-Strength Plastic
  Dimensions	∅ 39.6 × 266.7 mm
  Weight	464 g

• • 1x HOBO® U26 Dissolved Oxygen Datalogger
  • 1x 1/2 AA Lithium Battery (Installed)
  • 1x Quick Start Guide
  • 1x HOBOware® Software Download Information
• • 1x BASE-U-4 Optical USB Base Station or U-DTW-1 Waterproof Shuttle (Not Included)
• • HOBOware® Software for Windows and Mac (Downloadable)
  • HOBO® U26 User Guide (Included with Device)