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Part Number -
U22-001
HOBO Water Temperature Pro v2 Data Logger
Water Temperature (400 ft.)
$189.00 USD
A durable water temperature data logger with 12-bit resolution; for depths up to 400 feet.
Important Information
Requires HOBOware software and either an Optic USB Base Station or HOBO Waterproof Shuttle (U-DTW-1). HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
Compatible with
Overview
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A durable water temperature data logger with 12-bit resolution. Complete with a precision sensor for ±0.2°C accuracy, this logger measures temperatures between -40°C and 70°C (-40°F to 158°F) in air and up to 50°C (122°F) in water. The waterproof, streamlined case allows for extended deployment in freshwater or saltwater. And the optical USB interface lets you offload data even while the logger is wet or under water. A solar radiation shield is required to obtain accurate air temperature measurements in sunlight (either the assembly-required RS1 Solar Radiation Shield or the pre-assembled M-RSA Solar Radiation Shield).
Features
- Research-grade measurements at an affordable price
- Waterproof to 120 meters (400 feet)
- Data readout in less than 30 seconds via fast Optic USB interface
- Compatible with HOBOware and HOBOware Pro software for logger setup, graphing, and analysis
Specifications
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-40° to 70°C (-40° to 158°F) in air; maximum sustained temperature of 50°C (122°F) in water
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±0.21°C from 0° to 50°C±0.38°F from 32° to 122°F
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0.02°C at 25°C0.04°F at 77°F
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(90%) 5 minutes in water; 12 minutes in air moving 2 m/sec (typical)
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0.1°C (0.18°F) per year
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± 1 minute per month 0° to 50°C32° to 122°F
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2/3 AA, 3.6 Volt Lithium, non-replaceable
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6 years with 1 minute or greater logging interval
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64K bytes memory (approx. 42,000 12-bit temperature measurements)
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42 g1.5 oz
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3.0 cm (1.19 in.) maximum diameter, 11.4 cm (4.5 in.) length; mounting hole 6.3 mm (0.25 inches) diameter
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Polypropylene case, EPDM® o-rings, stainless steel retaining ring
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+13 g (0.5 oz.) in fresh water at 25°C (77°F); +17 g (0.6 oz.) with optional boot
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To 120 m400 ft.
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1.5 m (5 ft.) drop at 0°C to 70°C (32°F to 150°F)
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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.
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Immediate start and delayed start
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Offload while logging; stop and offload
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Battery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile.
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for additional charge
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IP68
Operation range†
Accuracy
Resolution
Response time
Stability (drift)
Real-time clock
Battery
Battery life (typical use)
Memory (non-volatile)
Weight
Dimensions
Wetted materials
Buoyancy (fresh water)
Waterproof
Shock/drop
Logging interval
Launch modes
Offload modes
Battery indication
NIST certificate available
Environmental Rating
IMPORTANT
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The plastic case will become brittle at temperatures lower than -20°C. If the logger is deployed in a location where the temperature drops below -20°C, make sure the logger remains stationary and is not pulled on or struck. Return the logger to above -20°C before handling.
†IMPORTANT
Compatible items
Compliance Certificates
Data Offload - Base Stations - Shuttles - Couplers
NIST Setup & Certifications
Protective Covers and Boots
Solar Radiation Shields
Accessories
Graphing & Analysis
What's in the box
- HOBO U22-001 Water Temp Pro V2
- Communications window protective cap
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