RS PRO IM203 Light Meter, 20lx to 200000lx, ±3 %

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

RS PRO Lux/FC Light Meter IM-203

RS PRO Lux/FC light meter IM-203 is a great value lux/foot-candle light meter. It measures light from visible sources (sun, moon or any light-emitting body) and from equipped fluorescent, metal halide, high-pressure sodium and incandescent sources.

Lightweight and pocket-sized, this mini handheld light meter is ideal for light measuring applications in almost any environment. The sensor is attached directly to the reader for compact convenience.

Features and Benefits

• To JISC1609:1993 and CNS 5119 general A class specifications
• Spectral response close to CIE luminous spectral efficiency
• Measuring intensities of illumination in lux or foot-candle
• Light sources measured include all visible light sources
• Measuring range 20,200, 2000, 20 000, 200 000 lux, 20,200, 2000, 20 000 foot-candle
• Accuracy ±3% (calibrated to standard incandescent lamp 2856°K), 6% other visible light source
• Cosine angular corrected
• Auto-ranging
• Datalogger, USB interface, 7000 records
• Dimensions 172 x 55 x 38 mm
• Weight (including battery) 250 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.


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.


When the meter is not in use, keep the cap of the light sensor in position to avoid the photo diode wearing out.

Supplied with

USB lead, lens cap, battery, user manual, CD-Rom, hard case


Attribute Value
Maximum Light Level 200000lx
Minimum Light Level 20lx
Best Accuracy ±3 %
Sensor Type Photodiode
Power Source Battery
Dimensions 172 x 55 x 38mm
Weight 250g
Features Data Logging, USB Interface
Height 38mm
Length 172mm
Width 55mm
Model Number p IM203
55 In stock - FREE next working day delivery available
Price Each
£ 214.00
(exc. VAT)
£ 256.80
(inc. VAT)
Per unit
1 +
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