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HOBO Pendant®Temperature/Light 8K Data Logger – UA-002-08
HOBO Pendant®Temperature/Light 8K Data Logger – UA-002-08
HOBO Pendant®Temperature/Light 8K Data Logger – UA-002-08

HOBO Pendant®Temperature/Light 8K Data Logger – UA-002-08

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This HOBO Pendant® data logger is a miniature, waterproof two-channel temperature and relative light level data logger. The 8K model comes at a great value and is suitable for indoor, outdoor, and underwater applications. This logger holds approximately 6.5K of 10-bit readings. Use a solar radiation shield for accurate temperature measurement in sunlight.See RS1 Solar Radiation Shield (assembly required) and M-RSA (pre-assembled) Solar Radiation Shield. Note that using a solar radiation shield prevents the use of the light sensor.



  • 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

In what environment does this data logger operate?

This data logger operates in indoor, outdoor and underwater environments.

What measurements does this data logger support?

The UA-002-08 data logger supports the following measurements:Light Intensity, Temperature and Water Temperature

Measurement Range

  • Temperature:-20° to 70°C (-4° to 158°F)
  • Light:0 to 320,000 lux (0 to 30,000 lumens/ft2)
  • Temperature:± 0.53°C from 0° to 50°C (± 0.95°F from 32° to 122°F), see Plot A in manual
  • Light intensity:Designed for measurement of relative light levels, see Plot D in manual for light wavelength response
  • Temperature:0.14°C at 25°C (0.25°F at 77°F), see Plot A in manual
  • 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 in manual
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 in manual
  • 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
  • Battery Type:CR2032
  • 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)

Environmental Rating:IP68

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

  • Datasheet|get
  • User's Manual|get