| OPERATION RANGE† | -40° to 70°C (-40° to 158°F) in air; maximumsustained 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 | ||||
| LOGGER | |||||
| 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 | ||||
| ENVIRONMENT RATING | IP68 | ||||
HOBO U22-001 – Water Temperature Pro v2 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 data logger is wet. For accurate ambient air temperature measurement in sunlight a solar radiation shield is required (RS1 Solar Radiation Shield, assembly required; M-RSA pre-assembled Solar Radiation Shield).
- 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
Environment
The U22-001 Data Logger is for use in Outdoor and Underwater environments
Measurements
The U22-001 Data Logger supports the following measurements : Temperature, Water Temp
