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T: 514-354-2511
T: 1 800 463-4363
F: 514-354-6948
Data Logger | TR-74Ui Data Logger

Data Logger | TR-74Ui Data Logger

Product Code: Model TR-74Ui

Need more Info? (514) 354-2511 - 1-800-463-4363

  • With just one unit it is possible to measure and record Illuminance, Ultraviolet Light, Temperature and Humidity.
  • Possible to view Cumulative Illuminance and Cumulative Amount of Ultraviolet Light in the LCD display
  • Illuminance can be measured within a wide range (from dim moonlight to the summer sun)
  • View and record Illuminance in resolutions to 0.01 lx.
  • Possible to measure and record up to 8,000 readings per measurement item.
  • Simultaneously view all four measurement items in one easy-to -read Graph.
  • Transmit recorded data to PC via USB connection.


Application Examples
  • In art museums and other exhibit forums to manage illuminosity and help prevent deterioration of exhibits
  • Management during all aspects of plant and food production
  • For use in the development, testing, manufacture and sales of products for cutting UV rays
  • UV reduction management in schools from kindergartens to universities
  • For home and office use in the management or illuminosity and UV rays
  • For managing the reduction of UV rays at swimming pools, the ocean, mountains and in parks.
  • For management and adjustment of illuminosity for photography and film
  • For management in the production, storage and sales of foodstuffs and beverages
  • For use at supermarkets, convenience stores and drugstores in UV product sales promotion materials



Measurement Items
Ultraviolet Light
Number of Channels
1 Ch.
Measurement Range (*1)
0 to 55°C
10 to 95%RH
0 to 130,000 lx
0 to 30 mW / cm2
Measuring Accuracy
10 to 100,000lx(*2)
Measurement / Display Resolution
Minimum: 0.01lx
Minimum: 0.001mW / cm2
Macromolecular Humidity Sensor
Display Range of Cumulative Measurement
0 to 90,000,000 lxh
6260W / cm2·h
Relative Spectral Response
260 to 400nm
Cosine Correction (cosθ)
Recording Interval Total of 15 choices: 1,2,5,10,15,20,30 seconds, 1,2,5,10,15,20,30,60, minutes
Recording Capacity 8000 Readings x 4 channels
Recording Modes Endless (Overwrite oldest data when capacity is full) One-time (Stop recording when capacity is full)
Power Source AA Alkaline Battery x 1
Battery Life (*3) about 6 months
Interface USB Communication
Weight About 62 g (including one AA battery)
Operating Environment Temperature: -10 to 60°C
Humidity: 90% RH or less (no condensation)
Attached Sensors THA-3151: Humidity Sensor x 1
ISA-3151: Illuminance and UV Sensor x 1
Accessories included in package
AA Alkaline Battery (LR6) x 1
USB Communication Cable (US-15C) x 1
Introductory Manual (Warranty) x 1
Software Set x 1
*1) when using supplied sensor
*2) when at 25°C and 50%RH
*3) Battery life varies depending upon the type of battery, the measuring environment, the frequency of communication, and the ambient temperature in which it is used.
*4) Approximated to the CIE standard response function V (λ)
*5) Within ±1.5% at 10°; Within ±3% at 30°; Within ±10% at 60°; Within ±30% at 80°



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