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- Onset HOBO - Model U26-001 - Dissolved ...
Onset HOBO - Model U26-001 -Dissolved Oxygen Logger
Measure oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters with the HOBO U26 Dissolved Oxygen Logger. This affordable and precise logger is recommended for aquatic biology and hydrology research projects. The HOBO U26 uses RDO® Basic (Rugged Dissolved Oxygen) optical DO sensor technology and is easy to maintain.
- Affordable, high performance dissolved oxygen (DO) monitoring with 0.2 mg/L accuracy
- Optical DO sensor technology for long-lasting calibration with less maintenance
- HOBOware Pro`s Dissolved Oxygen Assistant software corrects for measurement drift from fouling; provides salinity-adjusted DO concentrations and percent saturation
- Optical USB interface for high-speed, reliable data offload
- Easy-to-replace DO sensor cap lasts six months
NOTE: For DO measurements in saltwater, an adjustment for salinity is required. For waters with small changes in salinity ( HOBO U24-002-C conductivity logger .
NOTE: If you need DO in Percent Saturation, barometric pressure data is required, which can be logged with a HOBO Water Level Logger (U20-001-04).
Includes:
- U26-001 data logger
- DO sensor cap
- Protective Guard
- Calibration Boot with sponge
Environment:
The U26-001 Data Logger is for use inUnderwater environments
Measurements:
The U26-001 Data Logger supports the following measurements:
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)
- 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: 464 g (16.37 oz)
- The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).