• Used for long-term measurement and determination of illuminance according to the V-lambda curve (suitable for all common light sources)
• Standard-compliant accuracy according to DIN EN 13032-1 and class C according to DIN 5032-7
• Non-slip probe contact surface for convenient positioning at the measuring location
• Must be used along with a compatible Testo multifunction instrument

The 0635 0551 is a lux probe used for long-term measurement and determination of illuminance according to the V-lambda curve (suitable for all common light sources). The 0635 0551 must be used with a compatible Testo multifunction instrument. Lux probe - features The lux probe is ideal for determining the illuminance in workplaces. It 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) can also be measured without any problem. The 1.4 m cable length means that you can place the probe directly at the measuring location and carry out the measurement from a sufficient distance. So the readings are not affected by your shadow. The clearly structured measurement menu for long-term measurement enables the measuring instrument to be operated intuitively. Reading trends are reliably recorded thanks to the convenient input of measurement time and measuring cycle. Intelligent calibration concept You will get exceptionally accurate measurement results with the digital probe, because the measuring instrument makes measurement uncertainty a thing of the past. You only need to send the probe in for calibration - so the measuring instrument remains in continuous use. Areas of application for the lux probe Light conditions play an important role, particularly in the ergonomic assessment of workplaces. In order for light to also be good light, the illuminance must meet certain minimum values. Use the lux probe to check the illuminance in offices and production areas, hospitals, museums or schools with reliability.