U22-001 Hobo Pro V2 Water Temperature Data Logger

Description

The durable HOBO Water Temp Pro v2 has 12-bit resolution and a precision sensor for ±0.2°C accuracy over a wide temperature range. Designed with a durable streamlined case for extended deployment in fresh or salt water, the Water Temp Pro v2 is equipped with an Optic USB interface for data offload in the field, even when the logger is wet.
 

For accurate temperature measurement in sunlight a solar radiation shield is required (RS1 Solar Radiation Shield, assembly required; M-RSA pre-assembled Solar Radiation Shield).

IMPORTANT: The Hobo software and base unit need to be purchased with this logger. Please order via the recommended products area below.

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

Specifications

• Operation range: -20° to 70°C in air; maximum sustained temperature of 50°C in water
• Accuracy: 0.2°C over 0° to 50°C 
• Resolution: 0.02°C at 25°C 
• Response time: (90%) 5 minutes in water; 12 minutes in air moving 2 m/sec (typical)
• Stability (drift): 0.1°C  per year

Logger

• Real-time clock: ± 1 minute per month 0° to 50°C
• 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 
• Dimensions: 3.0 cm maximum diameter, 11.4 cm length; mounting hole 6.3 mm diameter
• Wetted materials: Polypropylene case, EPDM® o-rings, stainless steel retaining ring
• Buoyancy (fresh water): +13 g  in fresh water at 25°C ; +17 g  with optional boot
• Waterproof: To 120 m 
• Shock/drop: 1.5 m drop at 0°C to 70°C 
• 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.

Technical

Water Temperature Level Logger Pro Datasheet

Applications

 Include:

• Agricultural research
• Climate studies
• Irrigation management
• Ocean ecology
• Storm water impact
• Wetlands restoration
• Environmental impact