The Onset U22001 HOBO Pro v2 Water Temperature Data Logger is a durable logger with 12-bit resolution and the ability to be deployed in freshwater or saltwater bodies for extended periods of time. The optical USB interface allows for data to be offloaded even while the logger is wet or under water.
Operation Range: -40° - 158°F in air/maximum 122°F in water
Waterproof up to 400 feet
Data readout in less than 30 seconds via fast Optic USB interface
This product is available for shipping to the US, Canada, and Puerto Rico only.
NOTE: This product requires HOBOware software (USB interface cable included with BHW-PRO-CD purchase, ONLY)
Research-grade measurements
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
Operation range†: -40° to 70°C (-40° to 158°F) in air; maximum sustained temperature of 50°C (122°F) in water
Accuracy: ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F)
Resolution: 0.02°C at 25°C (0.04°F at 77°F)
Response time: (90%) 5 minutes in water; 12 minutes in air moving 2 m/sec (typical)
Stability (drift): 0.1°C (0.18°F) per year
Real-time clock: ± 1 minute per month 0° to 50°C (32° to 122°F)
Battery: 2/3 AA, 3.6 Volt Lithium, factory-replaceable ONLY
Battery life (typical use): 6 years with 1 minute or greater logging interval
Memory (non-volatile): 64K bytes memory (approx. 42,000 12-bit temperature measurements)
Wetted materials: Polypropylene case, EPDM o-rings, stainless steel retaining ring
Buoyancy (fresh water): +13 g (0.5 oz.) in fresh water at 25°C (77°F); +17 g (0.6 oz.) with optional boot
Waterproof: To 120 m (400 ft.)
Shock/drop: 1.5 m (5 ft.) drop at 0°C to 70°C (32°F to 150°F)
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
Launch modes: Immediate start and delayed start
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
The Onset U22-001 HOBO Pro v2 Water Temperature Data Logger is durable 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. Its waterproof, streamlined case allows for extended deployment in fresh or salt water. Moreover, the Water Temp Pro v2's optical USB interface makes it possible to offload data even while the logger is wet or underwater. A solar radiation shield is required to obtain accurate air temperature measurements in sunlight (RS1 Solar Radiation Shield, assembly required; or M-RSA pre-assembled Solar Radiation Shield).
Note: U22-001 requires the HOBOware software (free to download) to operate, and either a U-DTW-1 Waterproof Shuttle or the Base-U-4 Optic USB Base Station for configuration and data offload. Please also note that a USB interface cable comes with the purchase of a HOBOware Pro CD (BHW-PRO-CD), only.
