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Onset U23-001

HOBO Pro v2 Temperature/Relative Humidity (RH) Data Logger

Brand: Onset
Model No: U23-001
Our Model No: U23001
Condition: NEW
PDF Document Icon Data Sheet (179 KB)


Product Features:

  • NOTE: This product requires HOBOware software (USB interface cable included w/BHW-PRO-CD purchase, ONLY)
  • Weatherproof housing for use in outdoor or condensing environments
  • High accuracy
  • Replaceable Relative Humidity sensor provides fast response and superior recovery from condensing conditions
  • 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
  • Environments: The U23-001 Data Logger is for use in Outdoor environments
  • Measurements: Temperature, Relative Humidity
  • Range: Temp:-40° to 70°C (-40° to 158°F) - RH: 0-100%
  • Accuracy: Temp: ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F) - RH: ±2.5% from 10% to 90% RH (typical), to a maximum of ±3.5% including hysteresis Replacement for: H08-032-08

The Onset HOBO U23-001 Pro v2 Temperature/Relative Humidity (RH) Data Logger is a weatherproof data logger with built-in temperature and relative humidity sensors. The RH sensor provides superior durability in humid environments and is user replaceable.

Note: U23-001 data loggers require the HOBOware software (free to download) to operate. Please also note that a USB interface cable comes with the purchase of a HOBOware Pro CD (BHW-PRO-CD), only.

  • 1 - HOBO Pro v2 Temperature/Relative Humidity (RH) Data Logger
  • 1 - Clamp and mounting screws
  • 1 - UV protective cap
Model Description Buy Now Price
BHW-PRO-CD Onset BHW-PRO-CD HOBOware PRO v.3.x for PC & Mac Add to Cart


CASE-PELICAN-1510 Onset CASE-PELICAN-1510 Pelican Case Add to Cart


COMPLIANCE CERT Onset COMPLIANT CERT Certificate for H/S Add to Cart


U23-CAP Onset U23-CAP UV Protection Caps for U23 Series Data Loggers Add to Cart


COUPLER2-E Onset COUPLER2-E Replacement Coupler for HOBO Pro v2 Add to Cart


U23-RS-CLAMPKIT Onset U23-RS-CLAMPKIT Clamp Kit for U23-001 Add to Cart


NIST-SETUP Onset NIST-SETUP set up charge per logger Add to Cart


NIST-TEMP-POINT Onset NIST-TEMP-POINT standard certification point Add to Cart


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BASE-U-4 Onset BASE-U-4 Optic USB Base Station Add to Cart


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HP-B Onset HP-B HOBO Replacement Battery Kit Add to Cart


DESICCANT1 Onset DESICCANT1 Small Desiccant Pack (25) Add to Cart


HUM-RHPCB-1 Onset HUM-RHPCB-1 Replacement Relative Humidity (RH) Sensor for U23-001 Add to Cart


Data Sheet: PDF Document Icon (179 KB)
Manual: PDF Document Icon (325 KB)
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