HOBO Pendant^® Temperature/Light Data Logger 64K - UA-002-64

A miniature two-channel temperature and relative light level data logger, this 64K model is waterproof and value-priced for deployment in indoor, outdoor, and underwater applications measuring relative light levels and ambient temperatures. This 64K model stores approximately 52K of 10-bit readings.

• Low-cost temperature with alarm indication or light intensity
• Waterproof housing for wet or underwater use
• Data readout in less than 30 seconds via fast Optic USB interface

Measurement range
Temperature: -20° to 70°C (-4° to 158°F)
Light: 0 to 320,000 lux (0 to 30,000 lumens/ft2)

Accuracy
Temperature: +/- 0.54°C from 0° to 50°C (0.97°F from 32° to 122°F)
Light intensity: Designed for measurement of relative light levels

Resolution: Temperature: 0.10°C at 25°C (0.18°F at 77°F), see Plot A

Drift: Less than 0.1°C/year (0.2°F/year)

Response time: Airflow of 2 m/s (4.4 mph): 10 minutes, typical to 90%

Water: 5 minutes, typical to 90%

Time accuracy: ± 1 minute per month at 25°C (77°F), see Plot B

Operating range
In water/ice: -20° to 50°C (-4° to 122°F)
In air: -20° to 70°C (-4° to 158°F)

Water depth rating: 30 m from -20° to 20°C (100 ft from -4° to 68°F), see Plot C

NIST traceable certification: Available for temperature only at additional charge; temperature
range -20° to 70°C (-4° to 158°F)

Battery life: 1 year typical use

Memory
UA-002-08: 8K bytes (approximately 3.5K combined temperature and light readings or events)
UA-002-64: 64K bytes (approximately 28K combined temperature and light readings or events)

Materials: Polypropylene case; stainless steel screws; Buna-N o-ring

Weight: 18 g (0.6 oz)

Dimensions: 58 x 33 x 23 mm (2.3 x 1.3 x 0.9 inches)

The CE Marking identifies this product as complying with the relevant directives in the European Union (EU).

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