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  1. Data Loggers

HOBO U23 Series Pro v2 Loggers

Weatherproof loggers for outdoor temperature and humidity measurements, high-accuracy measurements.

HOBO U23 Series Pro v2 Loggers
HOBO U23-002 Series Pro v2 Loggers
  • HOBO U23-002 Series Pro v2 Loggers
    HOBO U23-002 Series Pro v2 Loggers
  • HOBO U23-001 Pro v2 Loggers
    HOBO U23-001 Pro v2 Loggers
  • HOBO U23-003 Pro v2 Loggers
    HOBO U23-003 Pro v2 Loggers
HOBO U23 Series Pro v2 Loggers
HOBO U23-002 Series Pro v2 Loggers
HOBO U23 Series Pro v2 Loggers
HOBO U23-001 Pro v2 Loggers
HOBO U23 Series Pro v2 Loggers
HOBO U23-003 Pro v2 Loggers
Retired products cannot be ordered
The HOBO MX2300 Series Data Loggers is the recommended replacement

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Manufactured
  • By HOBO Data Loggers by Onset
Includes
  • FREE Ground Shipping on orders of $1,000 or more
  • FREE Lifetime Tech Support
Product Specs
Questions?
Call 1-800-884-4967 or Email Us.
Open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET.
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Overview

Features

  • Weatherproof housing
  • Memory: 42,000 measurements
  • Temp measurement range -40 up to 212°F
  • Temp accuracy ±0.21°C
  • RH measuring range 0 to 100%
  • RH accuracy ±2.5%
  • 1 second to 18 hour sampling rate

Description

The HOBO U23 Series Pro v2 Loggers are weatherproof loggers that provide high-accuracy temperature and relative humidity measurements in a wide range of outdoor environments. The replaceable RH sensor provides superior recovery from condensing conditions. It's small diameter, external sensor versions are for measurements in tight places.

Documents

Spec Sheets

  • HOBO U23 Series Pro v2 Loggers Datasheet PDF (535 KB)

Software

  • HOBOware Graphing & Analysis Software (99.0 MB)

Application Notes and White Papers

  • Bluetooth vs USB Temp/RH Dataloggers PDF (7.5 MB)

Links

  • All possible part numbers

Accessories

Required Components

These additional components are required for the operation of your product. We strongly advise you to purchase these components unless you already own them or own a suitable alternative.

HOBO U-DTW-1 Waterproof Shuttle Data Transporter
HOBO U-DTW-1 Waterproof Shuttle Data Transporter

Compatible with all HOBO U-Series loggers with optic USB, waterproof up to 20m (66ft), requires HOBOware Pro software.

$339.00
HOBO BASE-U-4 Optic USB Base Station
HOBO BASE-U-4 Optic USB Base Station

Used to offload data from any HOBO data logger with an Optic USB interface, splash resistant.

In Stock
$185.00

Software

HOBO HOBOware Pro Software
HOBO HOBOware Pro Software

Plot or export data to spreadsheets, time saving tools to fast setup, readout and export, compatible with all HOBO data loggers.

$99.00

Need Help? Call a Temperature engineer at 1-800-884-4967

We're open Mo-Th 8am to 5:30pm. Fr 8am to 5pm ET

Rhys D. headshot Rhys D.
Applications Engineer
Luke M. headshot Luke M.
Applications Engineer
6 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer
Luke M. headshot Luke M.
Applications Engineer
6 years at Instrumart
Dwight M. headshot Dwight M.
Senior Applications Engineer
28 years at Instrumart
David S. headshot David S.
Applications Engineer
Alex A. headshot Alex A.
Senior Applications Engineer
19 years at Instrumart
Ron J. headshot Ron J.
Temperature Engineering Lead
29 years at Instrumart
Shawn D. headshot Shawn D.
Senior Applications Engineer
20 years at Instrumart
Rhys D. headshot Rhys D.
Applications Engineer

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HOBO U23 Series Pro v2 Loggers
HOBO U23 Series Pro v2 Loggers
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