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Lux probe (digital) - for measuring illuminance, wired

Lux probe (digital) for measuring illuminance, wired
Measuring illuminance with lux probe and testo 440
The digital Lux probe (wired) enables precise, standard-compliant measurement of illuminance according to the V-lambda curve, making it ideal for assessing lighting conditions in offices, production areas, schools, and other workspaces. Compatible with testo multifunction measuring instruments, it delivers accurate results and convenient handling.
  • Assesses light using the V-lambda curve  -  matching the spectral sensitivity of the human eye—ideal for workplace assessments.
  • Convenient Placement - The 1.4 m cable length and non-slip probe surface allow for flexible, hands-free positioning at the measuring location, minimising external interference.
  • Standard-Compliant Accuracy - Measures illuminance in accordance with DIN EN 13032-1 and DIN 5032-7, ensuring precise and reliable results.
  • Smart Calibration - The digital intelligent calibration concept allows only the probe to be calibrated, keeping the measuring instrument in service and maximising uptime.
The Lux probe (digital, wired) is designed for accurate and reliable illuminance measurement in a variety of professional environments. Whether you're evaluating lighting in offices, production facilities, schools, museums, or hospitals, this probe helps ensure compliance with lighting standards and supports ergonomic workplace assessments.

Using a clearly structured measurement menu, it enables intuitive operation and supports long-term measurements with defined intervals. It captures illuminance values that match human eye sensitivity in daylight, conforming to the V-lambda curve, and complies with DIN EN 13032-1 and DIN 5032-7 (Class C) standards for accuracy.

Thanks to its 1.4 m cable, users can place the probe directly at the desired measuring point while remaining at a distance to avoid shading the sensor. The non-slip contact surface ensures stable and consistent probe placement. Additionally, the intelligent calibration concept allows the probe to be recalibrated independently from the main instrument, reducing downtime and ensuring continuous operation.

Light

Measuring range
0 to 9300 ftc
0 to 100000 Lux
Accuracy
F1 = 6 % = V(Lambda) adjustment
Class C according to DIN 5032-7
DIN 13032-1 Appendix B
F2 = 5 % = cos-true evaluation
Resolution
0.1 Lux (< 10000 )
1 Lux (> 10000 )

General technical data

Storage temperature
-20 to +50 °C
Weight
110 g
Dimensions
110 x 55 x 22 mm
Operating temperature
0 to +50 °C
Cable length
1.4 m
Product colour
Black
Lux probe with fixed cable (cable length 1.4 m) and calibration protocol.
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GU34 2URAlton
HampshireUnited Kingdom
01420 544433

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