UT383 Mini Lux Meter for Accurate Light Level Measurement 0–200,000 lux

Measuring light intensity correctly matters whether you are setting up a photography studio, optimising plant growth under grow lights, or checking workplace brightness for comfort. This mini lux meter offers a wide measurement range from 0 to 200,000 lux, covering dim interiors to bright outdoor conditions. With a fast 0.5-second sampling time, you can take quick spot readings and rely on the data hold function to lock the value. The built-in backlight helps you read results in low-light environments, and the MAX/MIN recording feature lets you track the highest and lowest levels over a period. A low battery prompt and automatic 5-minute shutdown help extend battery life.

Features and Construction

The UT383 is a compact, handheld digital lux meter designed for practical, everyday light measurement tasks. Its straightforward controls and clear display make it accessible for professionals and hobbyists alike.

Measurement Range and Accuracy

The device measures illuminance from 0 to 200,000 lux (0–9999 Fc) with a resolution of 1 lux or 1 Fc below 9999. Sampling takes just 0.5 seconds, giving you near-instant feedback. When the reading exceeds the display limit, the meter shows “OL” as an overload indication, preventing misinterpretation.

Display and Controls

A large LCD screen with backlight shows current readings, battery status, and active functions. The front panel includes HOLD for freezing the displayed value, and MAX/MIN for cycling through recorded maximum and minimum values. These controls make it easy to compare light levels across different spots or times.

Build and Portability

At 163 x 55 mm, the meter is small enough to slip into a pocket or tool bag. It runs on a 4.5V battery and draws ≤30 mA in operation, with standby current under 10 µA. Automatic shutdown after 5 minutes of inactivity saves power.

Uses and Placement

This lux meter is suited to a variety of environments where light level verification is needed. Its wide range adapts from low-light settings to bright sunlight.

Photography and Studio Work

Photographers can use the UT383 to measure ambient light before setting up strobes or continuous lights. The MAX/MIN function helps monitor light fluctuations during shoots, and the backlight assists in dim studios.

Horticulture and Indoor Growing

Growers can check the light intensity reaching plant canopies to ensure Photosynthetically Active Radiation (PAR) targets are met. The meter’s 200,000 lux ceiling covers high-intensity discharge and LED grow lights.

Office and Workplace Compliance

Facilities managers can quickly verify that workstations meet recommended illumination levels. The portable design allows spot checks at desks, corridors, and meeting rooms without specialised training.

Benefits and Buying Value

The UT383 delivers essential light measurement functions without unnecessary complexity. Its battery-saving features and compact size make it a practical tool for repeated use.

Automatic Shutdown for Battery Life

The meter switches off after 5 minutes of inactivity, reducing battery drain. The low battery prompt (3.0–3.5V) gives clear warning before unexpected shutdown.

Simple One-Button Operation

With only a few dedicated buttons – HOLD, MAX/MIN, and power – the meter is easy to use even for first-time buyers. The included manual provides clear guidance in English.

Reliable Measurement for Critical Applications

Whether you are checking light for photography, horticulture, or workplace safety, the UT383 gives you repeatable readings you can trust. Its overload indication prevents ambiguous results.