RS PRO ILM01 Light Meter, 0.01lx to , ±3 % ± 5 Digit

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): TW
Product Details

RS PRO ILM-01 Digital Light Meter

From the trusted RS PRO brand, the ILM-01 is a great value digital light meter with spectral sensitivity close to the CIE photopic standard curve. The light meter has a sensor that attaches by a flexible wire allowing you to easily take readings where you need to most. It features a 4 digit LCD dual display for quick and accurate reading of measurements, and has a stand for further convenience.

Lightweight and pocket-sized, this handheld light meter is ideal for light measuring applications in almost any environment.

Features and Benefits

• Dual display, 4 digit LCD
• Spectral sensitivity close to CIE photopic curve
• Measuring Levels Ranging 0.01 to 50.00 Klux, 0.001 to 5000 foot-candles, autoranging 4 step
• Accurate and instant response
• Luminous intensity measurement
• Data Hold function
• Data memory and read function
• Point - average function
• Auto power off function
• Dimensions 150 x 72 x 33 mm
• Weight 320 g


Light meters measure light levels or light pollution within the environment. It’s a key piece of equipment to ensure that there is the right amount of ambient light within the workplace, at school or even at home, and are often used by photographers in studios and natural environments to calibrate film equipment. They most often measure light sources like white LED light, fluorescent lighting, metal halide, high-pressure sodium and incandescent lighting. The most common types of environments where light meters are used are:

• Warehouses and factories
• Commercial office buildings
• Hotels and restaurants
• Public buildings
• Schools and other educational buildings
• Libraries
• Museums and art galleries
• Hospitals and other healthcare buildings
• Garages and car parks
• Stadiums and sports & leisure buildings
• Building commissioning, operation and maintenance
• Building security
• Photography and video

How is light measured?

When using this light meter, light levels are measured using the lux scale and foot-candle scale.


RS PRO aims to be your go-to brand when you need reliability, quality, and affordability. We source high-quality tools and parts from trusted sources and employ expert testing to build a brand you can rely on.

When it comes to test and measurement equipment, RS PRO has an extensive range of solutions. From electrical to environmental measurement, we offer calibrated and multi-function instruments to suit your needs.

Supplied with

Carrying case, user manual, AAA battery (x6)


Attribute Value
Minimum Light Level 0.01lx
Best Accuracy ±3 % ± 5 Digit
Sensor Type Photodiode
Battery Life 100 h
Battery Type AAA
Power Source Battery
Dimensions 72 x 35 x 150mm
Weight 320g
Features Accurate, Auto Power Off Function, Data Hold, Instant Response, Point Average Function
Height 150mm
Length 72mm
Maximum Operating Temperature +50°C
Minimum Operating Temperature 0°C
Model Number p ILM01
Width 35mm
178 In stock - FREE next working day delivery available
Price Each
£ 63.00
(exc. VAT)
£ 75.60
(inc. VAT)
Per unit
1 +
Calibration Options:
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