USB Data Logger TR-74Ui

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Sale price¥38,000 JPY

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This data logger can simultaneously measure and record four values: illuminance, ultraviolet (UV), temperature, and humidity.

It can also display the cumulative illuminance and cumulative amount of UV rays on the LCD.

It is possible to measure a wide range of illuminance from moonlight to midsummer sunlight.

Recorded data is sent directly to a computer via USB connection.


  • Measure and record illuminance, ultraviolet rays, temperature, and humidity with one device
  • Large capacity of 8000 data for 4 channels
  • It is possible to display the cumulative illumination intensity and the cumulative amount of ultraviolet rays during recording.
  • Illuminance measurement range 0 to 130,000lx. With a minimum resolution of 0.01 lx, it can detect changes in illuminance as dim as moonlight.
  • Operates for up to 6 months on one AA alkaline battery.
  • Start/stop recording, change recording interval settings, turn off screen display
  • Changes can be made using the buttons on the main unit.
  • The attached sensor of the S type achieves high precision measurement of ±2.5%RH. Measurement range is temperature -25~70°C, humidity 0~99%RH.


Measurement target UV rays, illuminance, temperature and humidity
Measurement range Illuminance 0 to 130klx
UV 0 to 30 mW/cm2
Temperature and humidity 0 to 55℃, 10 to 95%RH
Main accuracy Illuminance UV ±5%
Temperature and humidity ±0.5℃
±5%RH (at 25℃, 50%RH)
Display Measurements, battery life warnings, and more
Data recording capacity 8000 x 4ch
Recording interval 15 ways 1 second to 60 minutes
Recording mode Endless/one time
Connection USB communication, serial communication
Power supply AA alkaline x1
Main unit operating environment Temperature: -10~60℃
Humidity: 90%RH or less (no condensation)
Size H:55mm x W:78mm x D:18mm
Waterproof None
Battery life About 6 months
Accessories AA alkaline battery (LR6), USB Mini-B communication cable (US-15C), illuminance ultraviolet sensor (ISA-3151), temperature and humidity sensor (THA-3151), instruction manual (warranty included) set
Calibration Only temperature/humidity only

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