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OVERVIEW
Monitor outdoor conditions quickly and easily with fast response Relative Humidity sensor
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.
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.
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SPECIFICATIONS
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 yearAccuracy 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 AResolution 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 AResponse 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 waterDrift 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 yearRelative 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/secDrift <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 membraneCables 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). -
SOFTWARE
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.
Learn more about HOBOware and HOBOware-Pro Features >>
HOBO U23 Pro v2 – Temperature/RH Data Logger
$473.00 ex GST
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.
