HOBO U23 Pro v2 - Temperature/RH Data Logger

Manufacturer:

The HOBO Pro v2 Temperature/Relative Humidity data logger is a weatherproof data logger with built-in temperature and relative humidity sensors. The Relative Humidity sensor provides superior durability in humid environments and is user replaceable.

Part Number: U23-001A

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$473.00 ex GST

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Overview
Video Library
Specifications
Software

Monitor outdoor conditions quickly and easily with fast response Relative Humidity sensor

Features

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 (HOBOware Pro is required when using the U-DTW-1 Waterproof Shuttle)

Important

The HOBO U23 Loggers require a Base Station BASE-U-4 and HOBOware Software or Shuttle U-DTW-1 and HOBOware-Pro to operate.

HOBO Temperature and Relative Humidity Data Logger U23 Pro v2

Learn the features of this outdoor temperature and relative humidity logger, perfect for condensing environments. Product specs such as robust case, built-in temperature and relative humidity sensor, temperature range and accuracy, and relative humidity range and accuracy are discussed. Battery details, optic USB data offload, and compatibility with HOBOware Pro software are also covered.

Technical Information
Temperature Sensor
Operation Range	U23-001A internal sensor: -40 to 70°C (-40 to 158°F) U23-002A external temperature sensor: -40 to 70°C (-40 to 158°F) U23-003 and U23-004 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	U23-001A and U23-002A: ±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F), ±0.2°C from 0 to 70°C (±0.36 from 32 to 158°F) U23-003 and U23-004: ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F); see Plot A
Resolution	U23-001A and U23-002A: 0.04°C (0.072°F) U23-003 and U23-004: 0.02°C at 25°C (0.04°F at 77°F); see Plot A
Response Time (Typical to 90%)	U23-001A internal sensor: 10 minutes in air moving 1 m/sec U23-002A external temperature sensor: 3 minutes, 45 seconds in air moving 1 m/sec U23-003 and U23-004 external sensors: 3 minutes in air moving 1 m/sec; 30 seconds in stirred water
Drift	U23-001A and U23-002A: <0.01°C (0.018°F) per year U23-003 and U23-004: <0.1°C (0.18°F) per year
Relative Humidity Sensor (U23-001A, U23-002A only)
Operation Range	0 to 100% RH, -40° to 70°C (-40° to 158°F) Exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%
Accuracy	±2.5% from 10% to 90% RH typical to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
Resolution	0.05%
Response Time (Typical to 90%)	U23-001A: 40 minutes in air moving 1 m/sec with protective cap U23-002A: 15 seconds in air moving 1 m/sec
Drift	<1% per year typical
Logger
Operation Range	-40° to 70°C (-40° to 158°F)
Real-time Clock	±1 minute per month 0° to 50°C (32° to 122°F)
Battery	1/2 AA, 3.6 Volt lithium, user-replaceable (HP-B)
Battery Life (Typical Use)	3 years with 1 minute or greater logging interval
Memory (Non-Volatile)	64K bytes memory (approx. 21,000 temperature and RH measurements)
Materials	All models: ASA styrene polymer housing and mounting clamp; polypropylene protective cap; Buna-N o-ring(s); U23-001A, U23-002A only: ASA styrene polymer RH sensor cap; modified hydrophobic polyethersulfone membrane
Cables	U23-001A: No cables U23-002A: One 184 cm (6 ft) PVC cable; sensor diameter 1 cm (0.38 in.) U23-003: Two 184 cm (6 ft) PVC cables; sensor diameter 0.5 cm (0.20 in.) U23-004: 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
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.
Weight	U23-001A: 57 g (1.5 oz); U23-002A: 118 g (3.1 oz); U23-003: 138 g (3.7 oz); U23-004: 102 g (2.7 oz)
Dimensions	Housing measures 10.2 × 3.8 cm (4.0 × 1.5 in.)
NIST Certificate	Temperature certificate available for an additional charge
CE Compliant	The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

HOBOware Software

HOBOware software is used for launching, reading out, and plotting data from HOBO® data loggers. With HOBOware, you can also check logger status, filter and export data, save changes to graphs in project files, and scale data with the Linear Scaling and Pulse Scaling data assistants. There are two versions of HOBOware: HOBOware and HOBOware Pro.

HOBOware Standard features

Simple menus for fast, easy logger setup and readout
Point & click for fast setup and readout
Scaling to real-world engineering units
Presentation-quality graphs
Easy export of data files to text or Excel format

FREE DOWNLOAD

Learn more about HOBOware and HOBOware-Pro Features >>

IMPORTANT: This HOBO data logger requires HOBOware software and a communications cable (see related products below)

Monitor outdoor conditions quickly and easily with fast response Relative Humidity sensor

Features

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 (HOBOware Pro is required when using the U-DTW-1 Waterproof Shuttle)

Important

The HOBO U23 Loggers require a Base Station BASE-U-4 and HOBOware Software or Shuttle U-DTW-1 and HOBOware-Pro to operate.