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64K Pendant Temperature/Light Data Logger


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 st..

  • Brands Onset
  • Product Code: UA-002-64
  • Availability: 7-10 Days

Tags: temperature, light, logger, indoor, outdoor, underwater, pendant, 64K, ua-002-64

64K Pendant Temperature/Light Data Logger

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. 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. 


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 Temperature


For more information visit Onset

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

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.

White Papers

On-Demand Webinars

How-To Videos

Informational Pages


Application Stories

Tech Notes

Forum Postings

Robust, low-cost data loggers for stream temperature, flow intermittency, and relative conductivity monitoring Data Logger Basics HOBOware Menus Explained Part 1 Tips on Buying a Data Logger In-Transit Temperature Monitoring of Capitol Christmas Treen-Transit Temperature Monitoring of Capitol Christmas Tree Wildlife Visitation to Compost Experiment Deploying a logger in a culvert pipe Suspending & orienting temp/light pendant UA-002 underwater?
  Groundwater Monitoring with HOBO Data Loggers HOBOware Menus Explained Part 2 What is a Data Logger? National Grid's Deep Energy Retrofit Pilot Program Water Temperature Loggers Survive Airport Bomb Blast Deploying water temp and water level loggers or developing a QAPP Data logger not measuring light intensity
  Monitoring Water Quality with HOBO Data Loggers Readout Basics in HOBOware   Solar Photovoltaic Array Monitoring at Allegheny College Underwater Loggers Aid Discovery of Prehistoric Fish HOBO Waterproof Shuttle U-DTW-1 indicator lights  
  Using Water Quality Loggers to Manage Native Fish Habitats Merging data files using HOBOware Pro, a deep dive   Underwater Temperature Loggers Dive into the Bahamas' "Black Holes" Underwater Data Loggers Assist in Coral Reef Health Research Logger power failure and data loss  
    Launch Basics in HOBOware   Water Temperature Monitoring in Buzzards Bay Watershed Study Shows Warming Trend in Alaskan Streams How often do temperature data loggers need recalibration and/or servicing?  
    Installing HOBOware and Managing License Keys     Scientists Study Coral Health in Seychelles Islands Pendant Optics  
    How to navigate the HOBOware plot screen     Monitoring Environmental Impact off Qatar’s Coastal Waters Proper Coupler Seating, BASE-U-4 (Optic Base station) and the U-DTW-1 (Waterproof Shuttle)  
    How to inspect and lubricate the O-ring on your HOBO Pendant data logger     HOBO Compact Data Loggers Support Coral Reef Health in Micronesia The effects of electroshock fishing on underwater loggers  
    Visit Onset's YouTube Channel     Data Loggers Monitor Lakes for Signs of Global Warming Waterproof shuttle for beginners  





Enclosure Material Polypropylene case; stainless steel screws; Buna-N o-ring
Light Sensor
Light Sensor Accuracy Designed for measurement of relative light levels
Depth Rating 30 m from -20° to 20°C (100 ft from -4° to 68°F),
Logger Battery Life 1 year typical use
Logger Battery Type CR2032
Logger Dimensions 58 x 33 x 23 mm (2.3 x 1.3 x 0.9 inches
Logger Environmental Rating IP68
Logger Memory 64K bytes (approximately 28K combined temperature and light readings or events)
Logger Operating Range In water/ice: -20° to 50°C (-4° to 122°F) In air: -20° to 70°C (-4° to 158°F)
Logger Weight 18 g (0.6 oz)
NIST Certificate Available for temperature only at additional charge; temperature range -20° to 70°C (-4° to 158°F)
Safety and Regulatory
Safety and Regulatory CE The CE Marking identifies this product as complying with the relevant directives in the European Union (EU).
Temperature Sensor
Temperature Sensor Accuracy ± 0.53°C from 0° to 50°C (± 0.95°F from 32° to 122°F)
Temperature Sensor Drift Less than 0.1°C/year (0.2°F/year)
Temperature Sensor Resolution 0.14°C at 25°C (0.25°F at 77°F),
Temperature Sensor 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),