- 1 Saves mean/max value (last reading)
- Non contact rpm measurement
- Optical mechanical/contact rpm measurement (Testo 470 only)
Technical Data
Probe Type - Optically with mod. light beam
Measuring Range - +1 to 99,999 rpm
Accuracy ±1 digit - ±0.02% of m.v. (+1 to +99,999 rpm)
Resolution - 0.01 rpm (100 to 999.9 rpm), 0.1 rpm (1,000 to 99,999 rpm), 1 rpm (+1000 to +99,999 rpm)
Mechanical (Testo 470 only) - +1 to 19.999 rpm, +/- 0.02% of m.v. (+1 to +19.999 rpm)

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