The Sthor Lux digital light meter is a multifunctional tool that combines the measurement of light intensity (lux) and ambient temperature in one easy-to-use device. This meter is ideal for both everyday use and professional applications where accurate monitoring of lighting conditions and temperatures is essential. Whether optimising lighting in the home or ensuring safety in the workplace, Sthor provides reliable and accurate measurements.

The instrument measures illuminance (lux) up to 200 000 lux and ambient temperatures between -40°C and +70°C. The high measurement range and accuracy allow the device to be used in a wide range of environments, including outdoor and indoor. The easy-to-use LCD display provides clear readings and the compact design makes the meter easy to carry.
Suitability for everyday use
For everyday use, the Sthor digital light meter is a handy tool for householders and hobbyists who want to improve their lighting conditions or optimise their energy consumption. The device is suitable for applications such as:

Home decoration and lighting design: the meter can be used to ensure that the lighting in a room is balanced, contributing to comfort and well-being.
Optimising energy consumption: monitor lighting intensity and adjust luminaires to improve energy efficiency.
Measure the amount of light your plants need and adjust the lighting conditions to meet your growing requirements.
Optimise lighting for photography and video: accurate lux measurement allows you to optimise lighting for photography or home studios.

Suitability for professional use
For professional use, the Sthor digital light meter meets a wider and more accurate range of needs in a wide variety of industries. It is an indispensable tool for professional applications such as:

Electrical installation and inspection: measuring lighting intensity ensures that the working environment meets safety and quality standards.
Lighting design and architecture: architects and lighting designers can ensure that designed lighting supports the client's needs and aesthetic objectives.
Industrial and office audits: measure light intensity in workstations, factories, warehouses, etc. to ensure an ergonomic and productive working environment.
Schools and public spaces: ensure that lighting in classrooms and public buildings meets regulations and creates a comfortable environment.
Construction and renovation work: use a meter to assess site conditions or ensure the correct lighting conditions during different phases of work.
Cultural and museum sites: optimise lighting for sensitive works of art and exhibitions and protect them from excessive light.

Specific characteristics in different environments

Indoor use: the meter provides accurate measurement in office, home and school environments where special attention is needed to the quality of lighting.
Outdoor use: can withstand wide temperature variations, making it ideal for measuring lighting in outdoor areas such as car parks, sports fields or construction sites.
Demanding environments: suitable for industrial applications such as measuring lighting conditions in warehouses, machine shops or other challenging environments.

The Sthor digital light meter combines versatile measurement features with a practical design, making it an excellent tool for both everyday and professional use. This makes it a great choice for anyone who needs reliable and accurate measurement results in a wide range of applications.
Package contents

Sthor Digital Light Meter
User manual
Carrying case

Features

Measuring range: 0-200 000 lux
Temperature measurement: -40 °C - +70 °C
Display: clear LCD display with high contrast
Size: compact and lightweight, easy to carry around
Power supply:Battery operated, long run time
Comfort:Ergonomic design and intuitive control buttons

Sthor digital light meter user manual














This user guide will help you get the most out of the features of the Sthor Digital Light Meter Lux. By following these instructions, you will ensure the accurate operation and longevity of your device.
1. Setting up the device

Check the packaging: make sure that the packaging contains all the necessary parts: the light meter, the user manual and the carrying case.
All the necessary accessories are included:

Open the battery compartment on the back of the device.
Insert the AAA batteries according to the polarity (+/-).
Close the battery compartment carefully.


Close the battery compartment by closing the battery compartment (+ +/-):

Press the power button to turn on the device.
Press the power button and the device will perform a short self-test and be ready for use within seconds.



2.

Align the light sensor of the instrument towards the light source to be measured.
Check the measurement range on the display. The meter supports the following ranges: 0-200 000 lux.
Hold function: you can lock the measurement result by pressing the HOLD button. This is useful if you want to view the result for a longer period of time.
To change the unit of measurement: to change from one lux unit to another, use the unit button.

3. Measuring the ambient temperature.

Press the MODE button to enter the temperature measurement mode.
Point the device at the area where you want to measure the temperature.
The temperature results are displayed in degrees Celsius (°C) or Fahrenheit (°F). The meter measures temperatures between -40 °C and +70 °C.
Press the unit button to change the measuring unit if necessary.

4. Additional features

Automatic power cut-off:

If the unit is not in use for 5 minutes, it will automatically shut down to save power.
This feature can be disabled by holding down the power button during start-up.


Backlighting:

Press the BACKLIGHT button to activate the backlight on the screen, making it easier to read in dim light.


Reset settings:

Press the RESET button to reset the measurement results.



5. Maintenance and cleaning of the instrument

Sensor: Clean the light sensor regularly with a soft, dry cloth to maintain accurate measurements.
Clean the display with a microfiber cloth if necessary.
Storage: Store the meter in a dry and dust-free environment in the carrying case provided.

6.

The instrument will not start:

Check the condition and installation of the batteries.
Check the batteries for correct installation and fit. Replace the batteries if necessary.


Unreliable results:

Make sure the sensor is not dirty.
Make sure the sensor is not dirty. Do not use the meter at the recommended ambient temperature (-10 °C to +50 °C).


Error code on the display:

Contact the manufacturer's customer service.



7.

Do not use the meter in extremely humid or hot environments as this may damage the instrument.
Do not expose the instrument to direct sunlight for long periods of time.
Use only the recommended batteries, and remove them from the instrument if it is not used for a long period of time.

8. Calibration of the instrument
The instrument is calibrated at the factory, but if the measurement accuracy deteriorates, it can be calibrated by a professional service station. Contact the importer of the instrument for more information on calibration.

By following these instructions, you can make full use of the Lux digital light meter from Sthor. This versatile and reliable device makes measuring lighting and temperature effortless for both everyday and professional use.














How to choose the right light meter
When choosing a light meter, it is important to consider the measuring range, accuracy and intended use. The Sthor Digital Light Meter is designed to cover a wide measuring range, making it suitable for both outdoor and indoor use. Compared to similar models such as Extech and Amprobe, Sthor offers a competitive price and reliable features.



Feature
Sthor
Extech
Amprobe




Measuring range
0-200 000 lux
0-100 000 lux
0-100 000 lux


Temperature measurement
-40 °C - +70 °C
No temperature function
No temperature function


Power supply
Battery powered
Battery powered
Battery operated