SKU: 0635 0551
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The Testo 0635 0551 Digital Lux Probe is designed for accurate, standard-compliant illuminance measurement in workplaces, offices, production areas, schools, museums, and hospitals. When paired with a compatible Testo multifunction instrument (such as Testo 400 or 440), it allows precise monitoring of lighting conditions according to international standards.
Built to DIN EN 13032-1 and Class C per DIN 5032-7, the probe ensures reliable evaluation of lighting intensity following the V-lambda sensitivity curve—the standard reference for the human eye’s daylight perception. It measures all common light sources, including white and warm-light LEDs (K < 5000), with excellent accuracy and consistency.
The probe’s non-slip contact surface ensures stable placement for reliable results. Its 1.4 m cable enables remote operation—allowing you to position the sensor directly at the measurement point while reading values from a comfortable distance, free from shading or interference.
With the long-term measurement menu on compatible Testo instruments, users can easily track lighting trends over time. The intelligent digital calibration system eliminates instrument uncertainty: simply send the probe for calibration while the measuring device stays in operation, minimizing downtime.
| Parameter | Specification |
|---|---|
| Product No. | 0635 0551 |
| Measured Parameter | Illuminance |
| Measuring Range | 0 to 100 000 Lux / 0 to 9300 ftc |
| Accuracy | F₁ = 6 % (V-lambda adjustment) • F₂ = 5 % (cosine evaluation) • DIN 5032-7 Class C • DIN 13032-1 Appendix B |
| Resolution | 0.1 Lux (< 10 000) / 1 Lux (> 10 000) |
| Operating Temperature | 0 to +50 °C |
| Storage Temperature | –20 to +50 °C |
| Cable Length | 1.4 m |
| Dimensions (L × W × H) | 110 × 55 × 22 mm |
| Weight | 110 g |
| Product Colour | Black |
| Calibration Concept | Intelligent digital calibration (probe-only) |
Data sheet testo 440
Data sheet testo 400
Instruction manual testo Air velocity and IAQ probes with fixed cable
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DISPATCH TIME -1-3 Days
METRO TRANSIT TIME- 2-4 Days
TRACKING NUMBER- Provided
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Email: sales@advancedtools.com.au
Phone: 08 7083 9862
Head Office: Unit 5/45 Bunnett St, Sunshine North, VIC 3020 (office only - no shopfront)
Business hours: Monday - Friday 9am-5pm ACDT (Melbourne)
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