HOBO Dissolved Oxygen Data Logger
Onset Logger Measuring and Recording Dissolved Oxygen and Temperature in Wet Environments
SKU
U26-001
$1,395.00
- 0 to 30 mg/L (Dissolved Oxygen) and -5°C to 40°C (Temperature) Measurement Ranges
- ±0.2 mg/L (Dissolved Oxygen) and ±0.2°C (Temperature) Accuracy
- USB Optical Interface for High-Speed Reliable Data Offload in Wet Environments
- 3 Year Factory Replaceable Battery
- Stores at Least 21,700 Sets of Measured Readings
- Includes Dissolved Oxygen Sensor Cap, Protective Guard and Calibration Boot with Sponge
Requires HOBOware Pro Software Download (Version 3.3.1+) and Base Unit
Special order - please be advised that due to supply shortages, some items may require 6 weeks for shipment
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Onset HOBO® U26-001 Dissolved Oxygen Data Logger Specifications
| Data Channels | 2 Channels (Dissolved Oxygen and Temperature) |
| Dissolved Oxygen | Sensor Type: Optical Measurement Range: 0 to 30 mg/L Calibrated Range: 0 to 20 mg/L @ 0°C to 35°C (32°F to 95°F) Accuracy: ±0.2 mg/L (0 to 8 mg/L); ±0.5 mg/L (8 to 20 mg/L) Resolution: 0.02 mg/L Response Time: < 2 Minutes (to 90%) DO Sensor Cap Life: 6 Months, Cap Expires 7 Months after Initialization (User-Replaceable DO Sensor Cap) |
| Temperature | Measurement Range: -5°C to 40°C (23°F to 104°F) Accuracy: ±0.2°C (±0.36°F) Resolution: 0.02°C (0.04°F) Response Time: < 30 Minutes (to 90%) |
| Data Storage Capacity | 21,700 Temperature and Dissolved Oxygen Readings |
| Sampling Rate | 1 Second to 18 Hours (User-Specified) |
| Operating Range | Temperature: -5 °C to 40°C (23°F to 140°F) - Non-Freezing |
| Battery | 3.6 Volt Lithium Battery - Factory Replaceable |
| Battery Life | 3 Years @ 5 Minute Sampling Rate (Dependant Upon Environment and Operating Range) |
| Time Accuracy | ±1 Minute per Month @ 0°C to 50°C (32°F to 122°F) |
| Maximum Depth | 70 Meters (225 feet) |
| Communications | Optical Connection Using BASE-U-4 or U-DTW-1 to Download Data |
| Depth Rating | 100 Meters (328 ft) |
| Wetted Materials | Black Delrin, PVC, EPDM o-rings, Silicone Bronze Screws |
| Software Compatibility | HOBOware PRO Version 3.2+ |
| OS Compatibility | Windows: Windows 11, 10 and 7 (32 and 64-Bit) Mac: OS X 10.9.x, 10.10.x and 10.11.x |
| Standards Compliance | CE, Rated for Saltwater Use |
| Weight | 464 grams (16.37 oz.) |
| Dimensions | 3.96 cm x 26.67 cm (1.56" x 10.5") |
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