HOBO Dissolved Oxygen Data Logger — main product view

Onset

HOBO Dissolved Oxygen Data Logger

Item code: U26-001Sold out

Dhs. 6,322.00

VAT included

An affordable, precise data logger that measures oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters. Overview An affordable, precise data logger that measures oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters. Recommended for aquatic biology and hydrology research projects, this easy-to-maintain logger uses RDO®...
Sensor Type Optical
Measurement Range 0 to 30 mg/L
Calibrated Range 0 to 20 mg/L; 0 to 35°C
Request a quote Ask an expert on WhatsApp

UAE stock · Ships in 1–2 business days

Calibration certificate available where supplied

Secure payment

American Express Apple Pay Diners ClubDiscoverGoogle Pay
Clear product informationSpecifications organised for easy review
Technical supportHelp choosing the right instrument
Genuine instrumentsProducts sourced from established brands
Product documentationAvailable documents shown below

Product overview

Built for reliable measurement

An affordable, precise data logger that measures oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters.

Overview

An affordable, precise data logger that measures oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters. Recommended for aquatic biology and hydrology research projects, this easy-to-maintain logger uses RDO® Basic (Rugged Dissolved Oxygen) optical DO sensor technology.

The HOBO U26 Dissolved Oxygen logger was part of a multi-year evaluation of DO loggers and sensors by the Alliance for Coastal Technologies (ACT), the results of which are published here. This un-biased report describes how the HOBO U26 performs in lab and field conditions. Note that our response letter, with added recommendations, is attached at the end of the report (pages 58-59).

 

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
  • User-replaceable DO sensor cap eliminates need to send logger back to the factory to replace membrane

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)
Buoyancy
Salt water: 13 g (0.46 oz) negative | Fresh water: 20 g (0.71 oz) negative
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
272.4 g (9.61 oz)
Environmental Rating
IP68
  • Sensor Type: Optical
  • Measurement Range: 0 to 30 mg/L
  • Calibrated Range: 0 to 20 mg/L; 0 to 35°C
  • 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
HOBO Dissolved Oxygen Data Logger — display close-up

Technical specifications

Sensor Type Optical
Measurement Range 0 to 30 mg/L
Calibrated Range 0 to 20 mg/L; 0 to 35°C
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 Measurement/Operating Range-5 to 40°C (23 to 104°F); non-Freezing
Temperature Accuracy0.2°C
Temperature Resolution0.02°C
Response Time To 90% in less than 30 minutes

Downloads & certificates

User Manual

Applications

Data LoggersDissolved Oxygen MetersEnvironmental MonitoringIndustrial Process MonitoringLab EquipmentONSET

You may also like