Testo 540 Light / Lux meter

540 Light / Lux meter

The sensor of the Testo 540 Lux Meter is adapted to the spectral sensitivity of the eye. This makes testo ideal for the measurement of light intensity.

The Hold function allows an easy readout of the measurement values. Max. and min. values are displayed at the press of a button.

The Testo 540 is very handy, small and easy to operate.

  Hold function and max./min. values
  Incl. calibration protocol
  Protective cap for safe storage
  Including wrist strap and belt holder
  Sensor adapted to spectral sensitivity of the eye
  Illuminated Display - For use in low light environments

Technical Specifications

Measuring Range

0 to 99,999 Lux
1 Lux (0 to 19,999 Lux)
10 Lux (20,000 to 99,999 Lux)


± 3% (compared with reference)


Lux / Footcandle

Operating Temperature

0 to 50°C

Battery Type

Alkaline (2 x AAA)

Battery Life

20 Hours (average, without display illumination)

Dimensions (inc Protective cap)

133 x 46 x 25 mm



OUR PRICE (ex. vat):  £99.95
(inc. vat @20%) £119.94
View all products by Testo
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