HOBO Pendant® Temperature/Light 64K Data Logger

Part # UA-002-64
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HOBO data loggers requires HOBOware software (USB interface cable included w/CD purchase) and a communications device. HOBOware Pro is required when using the U-DTW-1 Waterproof shuttle. See compatible items below.


Optical Interface for data transfer

This miniature data logger can record temperature and relative light levels. Complete with waterproof casing, this product is designed for indoor, outdoor, and underwater deployment. This model can store approximately 52,000 measurments of 10-bit readings.

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

To see the full specifications for this product, please see our product manual found under the documentation tab if available.

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

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

Temperature: 0.14°C at 25°C (0.25°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)

Plot CWater 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

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)

Plot DMaterials: 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).

Graphing and Analysis
HOBOware Pro Mac/Win (USB cable included)
HOBOware Pro - Mac/Win (Download Only)
Data Offload - Base Stations - Shuttles
Optic USB Base Station for Pendant
Optic USB Base Station
HOBO® Waterproof Shuttle
Replacement batteries (Pack of 5)
Case Replacement Kit
Pendant Replacement Parts Kit
Small Desiccant Pack (25-count)
Carrying Case
Pelican Case
Compliance Certificate
Data Offload Couplers
Replacement Pendant Coupler for the BASE-U-1
A Replacement Coupler for BASE-U-4
NIST Certification
Setup Charge for NIST Traceable
NIST Temperature point
Documentation for the UA-002-64

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

Pendant-Data-Loggers-Data-Sheet logo
Pendant Data Loggers Data Sheet

Growing-Degree-Days-Assistant-Users-Guide-10574 logo
HOBOware Pro Growing Degree Days Assistant - User’s Guide

The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below.

On-demand Webinars & Videos