HOBO U26-001 Dissolved Oxygen Data Logger

HOBO U26-001 Dissolved Oxygen Data Logger

  • $1,839.00


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'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 (<2 ppt), a salinity meter reading typically provides enough accuracy. 

HOBO data loggers require either the HOBO Waterproof Shuttle or Universal Optic USB Base Station  and a USB Cable. (Note: A USB cable is included w/ HOBOware Pro CD or USB software purchase). 
HOBOware Pro is required when using the U-DTW-1 HOBO Waterproof shuttle.

 

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)
  Environmental Rating: IP68
  Description: ce The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

We Also Recommend