testo Smart App
The App for all applications. Multifunctional. Continuously up to date. Free.
Many measurement sites - clear documentation
New PRO measuring program in the testo Smart App
testo 545 - Lux measurement
Measuring range | 0 to 100000 Lux |
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Accuracy | ±3% of mv±1Digit F2 = 5% = cos-true evaluation F1 = 6% = V(Lambda) adjustment Total ≤ 15% Class C ¹⁾ |
Resolution | 0.1 Lux (< 10000 Lux) 1 Lux (≥ 10000 Lux) |
1) corresponding to DIN 5032-7 / EN 13032-1, Appendix B |
Weight | 288 g |
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Dimensions | Probe: 134 x 54 x 23 mm 149 x 60 x 28 mm |
Operating temperature | Probe: 0 to +50 °C -10 to +50 °C |
Product-/housing material | ABS + PC / TPE |
Protection class | IP40 |
Cable length | 1.4 m |
Battery life | 70 h |
Battery type | 3x AA |
Storage temperature | -20 to +50 °C |