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    Light Meters

    Light meters, sometimes referred to as lux meters, are instruments that measure light levels or light pollution. You can find out more in our guide to light meters.

    How is light measured?

    Light can be measured in different ways with different light measurement instruments:

    • Photometer – measures visible light or light intensity. Light intensity can also be measured in two different ways; one way is by using a luminance meter which measures the visible energy output of a light source, or another method is by using an illuminance meter that measures the visible energy falling on an object's surface
    • Integrating sphere - collects electromagnetic radiation from a source completely external to the optical device
    • Spectrometer – uses the light, breaks it into its spectral components and creates a digital signal in wavelength form
    • Light Meter – measures light levels and is the most commonly used piece of equipment

    Light meters usually return measurements in Lux (in Europe), foot-candles (in the US), or both. Typical models are handheld and feature an integrated light sensor or a sensor connected by a lead.

    What are light meters and LUX meters used for?

    Light meters are frequently used in workplaces, schools, hospitals and public places to test if there is an appropriate amount of light within the environment. This is particularly pertinent in the workplace, as there is a responsibility that employees work in an environment with suitable lighting.

    They are also a key piece of light measurement equipment when it comes to working in photography, especially when using a camera in a studio, or in ambient light. A handheld light meter is often used to determine the proper exposure for a photograph.

    Budget light meters can help to perform quick checks on light intensity where more advanced models have monitoring functionality as well as the ability to record, store and transfer data.

    Key Benefits of a Light Meter and a LUX Meter:

    • Portable and sometimes pocket-sized, they are a useful piece of equipment to have for any light measuring applications
    • A meter that offers accuracy in measurement
    • Easy to read displays with real-time results

    Light Meters can help support a healthy building by improving Lighting

    43 Products showing for Light Meters

    RS PRO
    -
    -
    ±3 % ±5 Digits
    0.01 lx
    -
    400 h
    AAA
    Battery
    -
    320g
    Accurate, Data Hold, Instant Response
    35mm
    72mm
    ILM 1337
    +50°C
    RS PRO
    99990lx
    0.01 fc, 0.1 lx
    ±0.02 (XY/800 lx % @ Standard Illuminant A Measured), ±3 (EV Linerarity) %
    -
    -
    50 h
    AAA
    Battery
    -
    345g
    -
    35mm
    150mm
    -
    +50°C
    RS PRO
    1999lx
    9.999 fL, 9.999 cd/m²
    ±3 (Calibrated to Standard Incandescent Lamp (2856 K % @ +25°C or +77°F)), ±5 (Calibrated to Standard Incandescent Lamp (2856 K % @ +25°C or+77°F))
    0.01 lx
    -
    50 h
    AAA
    Battery
    -
    345g
    -
    35mm
    150mm
    -
    +50°C
    RS PRO
    -
    0lx
    ±3% rdg ±0.5% f.s
    0.01 lx
    Photodiode
    400 h
    AAA
    Battery
    -
    320g
    Accurate, Auto Power Off Function, Data Hold, Instant Response, Peak Hold Function, Relative Function
    150mm
    72mm
    ILM1335
    +40°C
    RS PRO
    400000lx
    400lx
    ±3 %
    3 lx
    Photodiode
    -
    AAA
    Battery
    -
    80g
    -
    23mm
    133mm
    IM720
    -
    RS PRO
    40000lx
    0lx
    ±5 %
    0.1 lx
    Silicon Photo Diode
    -
    9V
    Battery
    -
    175g
    Easy Transfer of Measuring Data to User Smart Phone
    35.6mm
    206mm
    RS-92
    +40°C
    HK$842.52
    Each
    RS PRO
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Memory Recall Button, Push Button 4 Light Type Select
    180mm
    72mm
    -
    -
    RS PRO
    -
    -
    ±3 (Incandescent) %
    -
    Photodiode
    -
    -
    Battery
    -
    250g
    Manual Ranging, Manual Zero Adjustment, Max Hold
    130mm
    55mm
    ILM201L
    -
    RS PRO
    200000lx
    0.01lx
    ±3 %
    0.1 lx
    Photodiode
    200 h
    9V
    Battery
    -
    250g
    Accurate, Data Hold, Instant Response
    135mm
    72mm
    ILM1332A
    +40°C
    RS PRO
    -
    -
    4 %
    0.1 lx
    Photodiode
    -
    9V
    Battery
    -
    390g
    Accurate, Data Hold, Instant Response
    20mm
    170mm
    RS-8809A
    +40°C
    RS PRO
    400000lx
    40lx
    ±3 %
    -
    Silicon Photo Diode
    -
    9V
    Battery
    -
    250g
    -
    28mm
    162mm
    RS-3809
    -
    RS PRO
    -
    0.01lx
    ±3 % ± 5 Digit
    -
    Photodiode
    100 h
    AAA
    Battery
    -
    320g
    Accurate, Auto Power Off Function, Data Hold, Instant Response, Point Average Function
    150mm
    72mm
    ILM01
    +50°C
    RS PRO
    200000lx
    20lx
    ±3 %
    -
    Photodiode
    -
    -
    Battery
    -
    250g
    Data Logging, USB Interface
    38mm
    172mm
    IM203
    -
    Extech
    400000lx
    -
    ±5% of Reading
    0.01 Fc/Lux
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LT300
    -
    Extech
    400Klx
    400lx
    ±5 %
    0.1 lx
    -
    -
    -
    -
    -
    -
    -
    -
    -
    HD450
    -
    Amprobe
    200000lx
    20lx
    ±6 %
    0.01 lx
    Photodiode
    200 h
    9V
    Battery
    -
    220g
    Data Hold
    38mm
    130mm
    LM-120
    +50°C
    Extech
    400000lx
    999.9lx
    ±3 %
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    LT40
    -
    Sauter
    200000lx
    200lx
    -
    0.1 lx
    Photodiode
    -
    -
    Battery
    -
    250g
    Data Hold
    28mm
    100mm
    SO 200K
    -
    Chauvin Arnoux
    200000lx
    0.01 fc, 0.1 lx
    ±3 %
    0.01 lx
    Silicon Photo Diode
    500 h
    AA
    Battery
    -
    345g
    Automatic Power-OFF, Data Storage, Interfaces, Manual Start/Stop Recording, MAP Mode, Min-Avg-Max-Hold, Mounting
    150mm
    72mm
    CA 1110
    +60°C
    Extech
    999900lx
    0.01lx
    ±3 %
    0.01 lx
    Light Sensor
    -
    -
    -
    -
    -
    -
    -
    -
    EA33-NIST
    -
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