HOBO U26-001 Dissolved Oxygen Data Logger

Description

Product Code: U26-001

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.

Includes:

• U26-001 data logger
• DO sensor cap
• Protective Guard
• Calibration Boot with sponge

Highlighted Features

• 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’sDissolved Oxygen Assistantsoftware 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 (<2 ppt), a salinity meter reading typically provides enough accuracy.

HOBO data loggers require either theHOBO Waterproof ShuttleorUniversal Optic USB Base Station.

HOBOware Prois required when using theU-DTW-1HOBOWaterproof shuttle.

Dissolved Oxygen Sensor Type: Optical Measurement Range: 0 to 30 mg/L Calibrated Range: 0 to 20 mg/L; 0 to 35C (32 to 95F) 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 40C (23 to 104F); non-Freezing Temperature Accuracy: 0.2C (0.36F) Temperature Resolution: 0.02C (0.04F) 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 50C (32 to 122F) 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) Environmental Rating: IP68 The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).