Onset HOBO U23-004 Pro v2 Temperature Data Logger, 1 internal/1 external sensor

Model: U23-004

Onset HOBO U23-004 Pro v2 Temperature Data Logger, 1 internal/1 external sensor

Model: U23-004

A weatherproof data logger with an internal temperature sensor and an external soil/water temperature sensor on a 6-foot cable.

A weatherproof data logger with an internal temperature sensor and an external soil/water temperature sensor on a 6-foot cable.

Discontinued!

This product has been discontinued and is no longer available. There is no direct replacement. Don't worry, we have some options to help you find what you need:

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Onset HOBO U23-004 Offers

HOBO Pro v2 data loggers are weatherproof loggers that provide high-accuracy temperature and relative humidity measurements in a wide range of outdoor environments.

Features

  • Weatherproof housing for use in outdoor or condensing environments
  • High accuracy
  • Small-diameter external sensor versions for measurements in tight spaces
  • Optic USB interface for fast and reliable download
  • Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis

Applications

  • Microclimate Monitoring
  • Environmental Research
  • Farming and Agriculture
  • Volcanic Park Monitoring
  • Vineyard Management

Onset HOBO U23-004 Specifications

Operation Temperature Range Internal Sensors -40 to 70°C (-40 to 158°F)
Temperature Range External Sensors -40 to 100°C (-40 to 212°F), with Tip and Cable Immersion in Fresh Water up to 50°C (122°F) for One Year
Accuracy ±0.21°C from 0 to 50°C (±0.38°F from 32 to 122°F); see Plot A
Resolution 0.02°C at 25°C (0.04°F at 77°F); see Plot A
Response Time (Typical to 90%) 3 Minutes in Air Moving 1 m/sec; 30 Seconds in Stirred Water
Stability (Drift) < 0.1°C (0.18°F) per year
Materials ASA Styrene Polymer Housing and Mounting Clamp; Polypropylene Protective Cap; Buna-N o-ring(s)
Cable One 184 cm (6 ft.) PVC Cable; Sensor Diameter 0.5 cm (0.20 in.)
Environmental Rating Electronics Housing is NEMA 6P Equivalent (Tolerant of Brief Submergence); Units with RH Sensors are NEMA 4 Equivalent (Splash-Resistant)
Launch Modes Immediate Start; Delayed Start
Logging Interval Fixed-Rate or Multiple Logging Intervals, with up to 8 User-Defined Logging Intervals and Durations; Logging Intervals from 1 Second to 18 Hours (Refer to HOBOware Software Manual)
Offload Modes Offload While Logging; Stop and Offload
Battery Indication Battery Voltage Can be Viewed in Status Screen and Optionally Logged in Datafile, Low Battery Indication in Datafile
Dimensions Housing Measures 10.2 × 3.8 cm (4.0 × 1.5 in.)
NIST Certificate Temperature Certificate Available for Additional Charge
Click here for complete specifications on the Onset HOBO U23-004

What's included with the Onset HOBO U23-004

  • HOBO U23-004 Pro v2 External Temp Data Logger
  • Clamp and Mounting Screws
  • UV Protective Cap

Click on a category to view a selection of compatible accessories with the Onset HOBO U23-004 Pro v2 Temperature Data Logger, 1 internal/1 external sensor.

Onset HOBO HP-B Lithium Battery, 3.6 V HP-B
Replacement battery for U23 data loggers, sold individually. Note: Lithium batteries cannot be shipped on commercial airlines, and more than 24 cannot be shipped in a single box.




Onset HOBO U23-CAP UV Protection Caps, 5-pack U23-CAP
For use with U23 Series Data Loggers.




Ask a question about Onset HOBO U23-004 Pro v2 Temperature Data Logger, 1 internal/1 external sensor

Customer Reviews for the Onset HOBO U23-004

Onset HOBO U23-004 Offers

HOBO Pro v2 data loggers are weatherproof loggers that provide high-accuracy temperature and relative humidity measurements in a wide range of outdoor environments.

Features

  • Weatherproof housing for use in outdoor or condensing environments
  • High accuracy
  • Small-diameter external sensor versions for measurements in tight spaces
  • Optic USB interface for fast and reliable download
  • Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis

Applications

  • Microclimate Monitoring
  • Environmental Research
  • Farming and Agriculture
  • Volcanic Park Monitoring
  • Vineyard Management

Onset HOBO U23-004 Specifications

Operation Temperature Range Internal Sensors -40 to 70°C (-40 to 158°F)
Temperature Range External Sensors -40 to 100°C (-40 to 212°F), with Tip and Cable Immersion in Fresh Water up to 50°C (122°F) for One Year
Accuracy ±0.21°C from 0 to 50°C (±0.38°F from 32 to 122°F); see Plot A
Resolution 0.02°C at 25°C (0.04°F at 77°F); see Plot A
Response Time (Typical to 90%) 3 Minutes in Air Moving 1 m/sec; 30 Seconds in Stirred Water
Stability (Drift) < 0.1°C (0.18°F) per year
Materials ASA Styrene Polymer Housing and Mounting Clamp; Polypropylene Protective Cap; Buna-N o-ring(s)
Cable One 184 cm (6 ft.) PVC Cable; Sensor Diameter 0.5 cm (0.20 in.)
Environmental Rating Electronics Housing is NEMA 6P Equivalent (Tolerant of Brief Submergence); Units with RH Sensors are NEMA 4 Equivalent (Splash-Resistant)
Launch Modes Immediate Start; Delayed Start
Logging Interval Fixed-Rate or Multiple Logging Intervals, with up to 8 User-Defined Logging Intervals and Durations; Logging Intervals from 1 Second to 18 Hours (Refer to HOBOware Software Manual)
Offload Modes Offload While Logging; Stop and Offload
Battery Indication Battery Voltage Can be Viewed in Status Screen and Optionally Logged in Datafile, Low Battery Indication in Datafile
Dimensions Housing Measures 10.2 × 3.8 cm (4.0 × 1.5 in.)
NIST Certificate Temperature Certificate Available for Additional Charge
Click here for complete specifications on the Onset HOBO U23-004

What's included with the Onset HOBO U23-004

  • HOBO U23-004 Pro v2 External Temp Data Logger
  • Clamp and Mounting Screws
  • UV Protective Cap

Click on a category to view a selection of compatible accessories with the Onset HOBO U23-004 Pro v2 Temperature Data Logger, 1 internal/1 external sensor.

Onset HOBO HP-B Lithium Battery, 3.6 V HP-B
Replacement battery for U23 data loggers, sold individually. Note: Lithium batteries cannot be shipped on commercial airlines, and more than 24 cannot be shipped in a single box.




Onset HOBO U23-CAP UV Protection Caps, 5-pack U23-CAP
For use with U23 Series Data Loggers.




Ask a question about Onset HOBO U23-004 Pro v2 Temperature Data Logger, 1 internal/1 external sensor

Customer Reviews for the Onset HOBO U23-004

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