UNI-T UT381A is an advanced digital lux meter designed for precise measurement of illumination intensity across a wide range of applications. The device performs excellently during lighting inspections in offices, laboratories, industrial facilities, warehouses, street lighting installations, and public utility buildings. With a wide measurement range of up to 400,000 lx and high measurement accuracy, the UT381A is a reliable tool for specialists conducting lighting audits and monitoring working conditions.
The lux meter is equipped with a detachable and rotating light sensor that can work both as an integrated element with the meter and on a measuring cable. The ability to set the sensor in four working positions (0°, 90°, 180°, and 270°) significantly facilitates measurements in hard-to-reach places. Additionally, the device supports Bluetooth communication, allowing data transmission to a mobile application and convenient analysis of results.
Model UT381A offers functions for measuring minimum, maximum, and average values, storage of up to 99 measurement results, a data hold function (Data Hold), color correction factor (CCF), and adjustable data logging intervals. The backlit LCD display, automatic shutdown, and low battery indicator enhance daily work comfort.

Technical data:
• Light intensity measurement range: 0 – 400,000 lx
• Measurement units: lx, fc
• Resolution:
0.01 lx (0 – 99.99 lx)
0.1 lx (100 – 999.9 lx)
1 lx (1000 – 400,000 lx)
• Accuracy: ±3% (for standard light source 2856 K), ±6% for other light sources
• Sensor type: detachable, rotating light sensor
• Sensor position adjustment options: 0°, 90°, 180°, 270°
• Measurement memory: 99 records
• measurement logging time adjustment: 1 – 59 s
• Measurement functions: MIN / MAX / AVG / HOLD
• Color correction factor (CCF): yes
• Bluetooth communication: yes
• Display: LCD with backlight
• Overrange indicator: OL
• Automatic shutdown: yes
• Low battery indicator: yes
• Sensor cable length: approx. 0.5 m
• Operating temperature: -10°C to 50°C
• Operating humidity: < 90% RH
• Power supply: 3 × AAA battery (1.5 V)
• Dimensions: 235 × 64.5 × 39.8 mm
- luksomierz UT381A
- 3 × AAA 1.5 V battery
- Cover
- 3x AAA
- 235 × 64,5 × 39,8
- 290
- luksomierz UT381A
- 3 × AAA 1.5 V battery
- Cover
- 3x AAA
- 235 × 64,5 × 39,8
- 290
No. 6, Gong Ye Bei 1st Road
Songshan Lake Guangdong Province
Chiny
Email: info@uni-trend.com
Telephone: +86-769-85723888
Geodetów 24
80-298 Gdańsk
Polska
Email: contact@baltrade.eu
Telephone: 58 552 20 20








