Choose a free accessory with a multifunction tester.Shop Now
Pocket-sized and easy to use, the Testo 540 is excellent for checking light levels in offices and other similar applications.
Specially adapted to the sensitivity of the human eye, the Testo 540 quantifies the level of light in an area in lux. To use, simply hold the integrated sensor as close as possible to a light source and the 540 will then gain a reading.
This tester also includes additional functionality such as data hold (temporarily stores the last value taken on the screen) and a MAX/MIN function which calculates the maximum and minimum value taken over a period of time.
|Measuring Range||0 to 99,999 lux|
|Accuracy ± 1 Digit||±3% (compared to reference Class B, DIN 5032 Part 7)|
|Resolution||1 Lux (0 to 19.999 lux)
10 Lux (remaining range)
|Measurement Rate||0.5 seconds|
|Storage Temperature||-40 to +70°C|
|Operating Temperature||0 to +50°C|
|Battery Type||2 x AAA|
|Battery Life||200 hours (average, without display illumination)|
|Dimensions||133 x 47 x 25mm|
|Weight||95g (incl batteries and protective cap)|
We'd really appreciate it if you'd review this product
Why not leave a review of this product? Reviews help us improve our service for customers looking for a product to make a decision.
Review by Dennis (Posted on 24/12/2016)
Easy to use ,would recommend it to anyone
Do you have a question or found it cheaper? Contact us