Optical Interface for data transferOnly 3x4 cm, this tiny data logger measures temperatures over a wide temperature range. The TidbiT v2 provides 12-bit resolution and has ±0.2 °C accuracy. It is designed for outdoor and underwater environments and is waterproof to 300 m (1000 ft). An optical USB interface allows users to offload data in seconds. Please note, 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).
Onset's smallest temperature data logger
Waterproof to 300 meters (1,000 feet)
Data readout in less than 30 seconds via fast Optic USB interface
In what environment does this data logger operate?
This data logger operates in outdoor and underwater environments.
What measurements does this data logger support?
The UTBI-001 data logger supports the following measurements: Temperature and Water Temperature
Operation range:* -20° to 70°C (-4° to 158°F) in air; maximum sustained temperature of 30°C (86°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: 5 minutes in water; 12 minutes in air moving 2 m/sec; 20 minutes in air moving 1 m/sec (typical to 90%)
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: 3 Volt lithium, non-replaceable
Battery life (typical use): 5 years with 1 minute or greater logging interval
Memory (non-volatile): 64K bytes memory (approx. 42,000 12-bit temperature measurements)
Weight: 19.6 g (0.69 oz)
Dimensions: 3.0 × 4.1 × 1.7 cm (1.2 × 1.6 × 0.68 in.); mounting bail 4.6 mm (3/16 in.) diameter hole
Wetted materials: Epoxy case
Waterproof: To 305 m (1000 ft.)
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, delayed start
Offload modes: Offload while logging; stop and offload
Battery indication: Battery level can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile.
Environmental Rating: IP68
NIST certificate: Available for additional charge
The CE Marking identifies this product as complying with the relevant directives in the European Union (EU).
* To guarantee accuracy, the TidbiT v2 Temp must not be used in condensing environments and water temperatures higher than 30C (86F) for more than eight cumulative weeks over the life of the logger. Frequent or prolonged exposure will lead to measurement drift and eventual failure.