The UNI-T UT383S is a compact and reliable digital light meter for measuring illuminance in lux (Lux) and footcandle (Fc). Equipped with a split probe and automatic range selection function, it provides fast and accurate readings in a wide range of lighting conditions. Ideal tool for industrial, horticultural, photographic, construction and interior design applications.
The UT383S can measure light intensity from 0 to 199,900 Lux with a sampling time of only 0.5 seconds. Automatic range switching and unit selection (Lux/Fc) allow the device to easily adapt to different working environments. Thanks to the high accuracy of the measurements, the device is ideal for both laboratory and field use.
The meter offers useful features such as maximum and minimum value annotation, data retention, overload indication (LO/HI) and screen backlighting for added convenience in low light conditions. The UT383S automatically turns off after a period of inactivity, helping to save energy.
Compact size, ergonomic design and powered by three AAA batteries make the UT383S convenient for everyday use and easy to carry.

- Manufacturer code UT383S
- Certificates CE, UKCA
- Brightness measurement range 0-199,900 Lux
- Accuracy 0-9999 Lux: ±(4% + 8)
- ≥10,000 Lux: ±(5% + 10)
- Measurement units Lux / Fc (Fc = Lux / 10.76)
- Resolution 1 Lux (up to 9999 Lux)
- 10 Lux (≥10,000 Lux)
- 100 Lux (≥100,000 Lux)
- 0.1 Fc / 1 Fc / 10 Fc
- Additional functions MAX/MIN, Data Hold, Overload indication (LO/HI), Screen backlight, Automatic shutdown, Low battery level indicator.
- Sampling time 0.5 s
- Power supply 3 × 1.5 V AAA batteries (R03)
- Display 35 × 32 mm
- Color red-gray
- Net weight 300 g
- Dimensions 110 × 53 × 26 mm