Part Number -


HOBO Pendant Temperature/Light 8K Data Logger


A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 6.5K measurements.A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 6.5K measurements.

Important Information

Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1). HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.

Compatible with

Product upgrade options


HOBO Pendant MX Temperature/Light Data Logger

$89.00 USD
View product


HOBO Pendant Temperature/Light 64K Data Logger

$105.00 USD
View product

A miniature, waterproof, value-priced, two-channel temperature and relative light level data logger. Suitable for indoor, outdoor, and underwater applications, this logger holds approximately 6.5K of 10-bit readings. For accurate temperature measurement in sunlight, a solar radiation shield is required (assembly-required RS1 Solar Radiation Shield or pre-assembled M-RSA Solar Radiation Shield). Note that using a solar radiation shield prevents the use of the light sensor.

Optical interface for transfer
  • 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)

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).

Compatible items

Compliance Certificates

$30.00 USD

Data Offload - Base Stations - Shuttles - Couplers

$15.00 USD

NIST Setup & Certifications

Solar Radiation Shields

$149.00 USD
$100.00 USD


$13.00 USD

Case Replacement Kit

$25.00 USD


$13.00 USD

Data Offload - Base Stations - Shuttles - Couplers

$175.00 USD
$325.00 USD

Graphing & Analysis

$75.00 USD
$99.00 USD
What's in the box
  • HOBO UA-002-08 Pendant Temperature/Light 8K Data Logger

HOBO Pendant Temperature/Light Data Logger (UA-002-08, UA-002-64) User's Manual

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HOBO® Pendant® Data Logger (UA-00x) Quick Start

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