HOBO Pendant Temperature/Light 64K Data Logger

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 52K measurements 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.

Documentation

Highlighted Features

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

Specifications

Measurement Range:

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

Accuracy:

• Temperature: ±0.53°C from 0°C to 50°C (±0.95°F from 32°F to 122°F), see Plot A in manual
• Light Intensity: Designed for measurement of relative light levels, see Plot D for light wavelength response

Resolution:

• 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°C to 50°C (-4°F to 122°F)
• In Air: -20°C to 70°C (-4°F to 158°F)
• Water Depth Rating: 30 m from -20°C to 20°C (100 ft from -4°F to 68°F), see Plot C in manual
• NIST Traceable Certification: Available for temperature only at an additional charge; temperature range -20°C to 70°C (-4°F to 158°F)

Battery:

• Battery Life: 1 year typical use
• Battery Type: CR2032

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  

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

Environmental Rating: IP68

Applications 

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 UA-002-64 data logger supports the following measurements: Light Intensity, Temperature, and Water Temperature