General
Measurement ranges	0-1.999, 2.000-19.999, 20.000-50.000 LUX
Accuracy of measurement	±5% +5 Digits
Resolution	1, 10, 100 LUX
Scope of delivery	LX-101, plastic bag, short description (English)
Batteries	4x 1.5V AAA (not included)

The Digital LUX Meter LX101 from Synergy 21 is a compact measuring device for determining illuminance in lumens per square metre (LUX). It is suitable for applications in lighting technology, facility management, industry, as well as for quality control in indoor and outdoor environments. The device features an LCD display that clearly and legibly shows the measured values, enabling precise measurements in the range of 0 to 50,000 LUX. Measurement is performed via an integrated light sensor that captures brightness in three pre-set measurement ranges: 0–1,999 LUX, 2,000–19,999 LUX, and 20,000–50,000 LUX. The resolution varies depending on the range and is 1 LUX, 10 LUX, or 100 LUX, enabling detailed representation of illuminance.

Applications
This device is used in areas where accurate measurement of illuminance is required, for example, in planning and verifying workplace lighting, in production halls, during installation of lighting systems, or in architecture. It is also suitable for inspections according to standards such as DIN 5034 or DIN EN 12464, which define minimum requirements for lighting in workspaces. The measurement accuracy of ±5 % plus 5 digits ensures reliable results that can be used for technical documentation and inspection reports.

Functions and Equipment in Detail
The LX101 features a robust, compact housing with dimensions of 132 × 64 × 30 mm and a weight of approximately 325 g (including batteries). Operation is via a simple button interface that allows selection of measurement ranges and display of values. The LCD display shows the measured LUX values in real time. The measurement accuracy of ±5 % plus 5 digits ensures that the values fall within a defined tolerance range, which is sufficient for technical applications. The resolution in the individual ranges (1, 10, 100 LUX) enables differentiated representation of brightness, depending on whether fine or coarse measurement is required.

Technology Explained Simply
Illuminance measurement is performed via a photometric sensor that converts incoming light into electrical signals. These signals are then digitally processed and displayed on the LCD screen. The three measurement ranges allow optimal adaptation to different lighting conditions, from dimly lit rooms to strong light sources outdoors. The resolution in each range ensures that even small changes in brightness can be detected. The measurement accuracy of ±5 % plus 5 digits means that the displayed value may deviate by up to 5 % from the actual value, plus an additional possible deviation of 5 digits (e.g., for a displayed value of 1,999 LUX, the actual value could range between 1,899 and 2,099 LUX).

Compatibility and Accessories
The device is supplied with a plastic carrying case for storage and a short description including typical illuminance values (in English). These documents support handling and interpretation of the measured values. The case protects the device from mechanical damage and allows compact storage. The short description includes examples of typical LUX values in various environments, such as office workspaces, production halls, or outdoor areas, which facilitates evaluation of the measured values.

Mounting and Installation
The device is designed as a handheld instrument and requires no mounting or installation. It is simply held in hand and the sensor is directed toward the light source to be measured. Operation is via buttons on the device that start the measurement and control the display. Measurement begins immediately once the sensor detects light. The positioning of the device is crucial for accurate results; it should be oriented perpendicular to the light source and should not be influenced by direct reflections or shadows.

Advantages in Operation
The LX101 offers a simple, fast, and reliable method for measuring illuminance. The clear display and easy operation enable quick interpretation of values. The three measurement ranges and variable resolution provide flexibility for different application scenarios. The compact design and low weight make the device easy to handle and transport. The measurement accuracy of ±5 % plus 5 digits is sufficient for most technical applications. The included case and short description support practical use and protect the device.

Note: Batteries are not included in the delivery scope.