Hobo U26 Dissolved Oxygen Logger

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U26-001

last updated：Jul 08, 2025

パシコ貿易

A logger that is optimal for monitoring the effects of dissolved oxygen in water on various aquatic environments!

The "Hobo U26 Dissolved Oxygen Logger" is a data logger that measures and records dissolved oxygen in water. The recorded data can be corrected using the correction program "Dissolved Oxygen Correction Assistant" to account for sensor drift caused by factors such as salinity, atmospheric pressure, and biofouling. It is an ideal tool for monitoring the impact of dissolved oxygen in aquatic ecosystems and various water environments. 【Features】 ■ Very high cost-effectiveness (maximum accuracy ±0.2 mg/L) ■ Optical DO sensor with long-lasting calibration and minimal maintenance ■ Correction of drift caused by aquatic biofouling and other influences ■ Easy maintenance with user-replaceable sensor caps *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

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【Specifications】 <Dissolved Oxygen (DO) Sensor> ■ Calibration Range: 0–20 mg/L (0–35°C) ■ Measurement Range: 0–30 mg/L ■ Accuracy: ±0.2 mg/L (0–8 mg/L), ±0.5 mg/L (8–20 mg/L) ■ Resolution: 0.02 mg/L ■ Response Time (90% change): <2 minutes ■ DO Sensor Cap Lifespan: 6 months (with an additional 1-month grace period) <Temperature Sensor> ■ Measurement Range: -5–40°C (no freezing) ■ Accuracy: ±0.2°C ■ Resolution: 0.02°C ■ Response Time (90% change): <30 minutes <Common Specifications> ■ Recording Capacity (64KB): 21,700 samples (Dissolved Oxygen/Temperature set) ■ Time Accuracy: ±1 minute/month (0–50°C) ■ Power Supply: Built-in dedicated battery (replaceable at U.S. factory) ■ Battery Life: Approximately 3 years *Estimated for use with intervals of 5 minutes or more ■ Pressure Resistance Depth: Up to 100m ■ Interval: 1 minute to 18 hours (user-configurable) ■ Dimensions: 39.6mmφ × 266.7mm length, 6.3mmφ mounting hole ■ Weight: 464g ■ Software: HOBOware Pro *For more details, please refer to the catalog. Feel free to contact us with any inquiries.