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UT381 Illuminometers (LUX Meters) – Advanced

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Specifications Range Best Accuracy
Model   UT381
llluminace Measurement (LUX) 20 Lux ±(3.0%+20)
200 Lux ±(3.0%+8)
2000 Lux  ±(3.0%+8)
20000 Lux  ±(3.0%+8)
llluminace Measurement (FC) 2 FC
20 FC
200 FC
2000 FC
Display Count   1999
Auto Range  
Data Hold  
Auto Power Off Around 10 minutes
Low Battery Indication Around ≤7.1V
MAX Mode  
MIN Mode  
Data Logging   2044
Auto Record Time Setup  
Real-Time Clock  
General Characteristics 
Power 9V Alkaline Battery (6LF22)  
LCD Size 22.5mm X 32.5mm 
Product Color Red and Grey 
Product Net Weight 185g
Product Size 195mm X 45mm X 26mm
Standard Accessories Battery, Carrying Bag
Standard Individual Packing Blister, English Manual


UT381 Illuminometer
UNI-T’s UT381 is a 1999-count auto range illuminometer with 20~20000 Lux (Fc) range. 2044-group data storage and auto power off are available.
  • Auto/manual range, data hold
  • Auto power off (cancelable)
  • MAX/MIN modes
  • 2044 sets data storage
  • Displays time and adjustable record intervals (0.5~255s)
  • Restore to default mode
  • Lux/FC selectable

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