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The HOBO® Dissolved Oxygen Logger Model U26-001 is a high-precision, self-contained data logger designed for aquatic monitoring in diverse water environments, including lakes, streams, rivers, and coastal waters. Essential for tracking oxygen concentrations, this logger supports aquatic biologists, hydrologists, and research professionals in monitoring aquatic health.
Featuring advanced optical dissolved oxygen sensor technology, the logger ensures long-lasting calibration with reduced maintenance requirements. Its memory can store up to 21,700 sets of dissolved oxygen and temperature measurements, making it ideal for long-term deployments. The logger is equipped with an optical USB interface for fast and reliable data offload and is compatible with the HOBO Waterproof Data Shuttle for efficient data retrieval.
| Specification | Details |
|---|---|
| Brand | HOBO |
| Model Number (MPN) | U26-001 |
| UNSPSC Code | 41115600 |
| Dissolved Oxygen (DO) | |
| Sensor Type | Optical |
| Measurement Range | 0 to 30 mg/L |
| Calibrated Range | 0 to 20 mg/L; 0 to 35°C (32°F to 95°F) |
| Accuracy | ±0.2 mg/L (up to 8 mg/L); ±0.5 mg/L (8–20 mg/L) |
| Resolution (DO) | 0.02 mg/L |
| Response Time (DO) | 90% in less than 2 minutes |
| DO Sensor Cap Life | 6 months (expires 7 months after initialization) |
| Temperature | |
| Measurement Range | -5°C to 40°C (23°F to 104°F), non-freezing |
| Accuracy | ±0.2°C (±0.36°F) |
| Resolution (Temperature) | 0.02°C (0.04°F) |
| Response Time (Temperature) | 90% in less than 30 minutes |
| Logger Specifications | |
| Memory | 21,700 sets of DO and temperature (64 KB total memory) |
| Logging Rate | 1 minute to 18 hours |
| Battery Type | 3.6 V lithium (factory replaceable) |
| Battery Life | 3 years (at 5-minute logging intervals) |
| Depth Rating | 100 m (328 ft) |
| Wetted Materials | Black Delrin®, PVC, EPDM o-rings, silicone bronze screws |
| Dimensions | 1.56” diameter x 10.5” length |
Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
US$40
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