HOBO Water Temperature Pro v2 Data Logger

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Overview

The HOBO Water Temp Pro v2 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).

Manufactured by: Onset
Model: HOBO Water Temperature Pro v2 Data Logger

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance

Applications

Temperature
Water temperature

Specification

 
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)
Weight 42 g (1.5 oz)
Dimensions 3.0 cm (1.19 in.) maximum diameter, 11.4 cm (4.5 in.) length; mounting hole 6.3 mm (0.25 inches) diameter
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. Refer to HOBOware software manual.
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.
NIST certificate available For additional charge
Environmental rating IP68
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).
*IMPORTANThe 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.

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