Testo 0635 0551 Digital Lux Probe - DISCONTINUED

0635 0551

Key Features:

This Product is DISCONTINUED

  • Intuitive: clearly structured measurement menu for long-term measurement and determination of illuminance according to the V-lambda curve (suitable for all common light sources)
  • Precise: standard-compliant accuracy according to DIN EN 13032-1 and class C according to DIN 5032-7
  • Convenient: non-slip probe contact surface for convenient positioning at the measuring location
  • Intelligent calibration concept
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Testo’s 0635 0551 Digital Lux probe assesses the illuminance according to the V-lambda curve, which corresponds to the sensitivity of the human eye in daylight. White or warm light LEDs (K< 5,000) are able to be measured quickly and easily. The 0635 0551 is constructed with a 1.4m cable length allowing the probe to be placed directly at the location so users can carry out measurements from an acceptable distance eliminating the risk of readings being affected by shadows. Users can input measurement time and cycle allowing reading trends to be recorded. A user-friendly measurement menu and intuitive operation saves both time and effort.

Measuring range

0 to 100000 Lux


DIN EN 13032-1 Appendix B

Class C according to DIN 5032-7


0.1 Lux (< 10000 )

1 Lux (> 10000 )


General technical data

Storage temperature

-4° to 122 °F / -20 to +50 °C


3.9 oz. / 110 g


4.3 x 2.2 x 0.9 in. / 110 x 55 x 22 mm

Operating temperature

32° to 122 °F / 0 to +50 °C

Cable length

4.593 ft. / 1.4 m

Product colour



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