4: Digital display gives exact RPM with on guessing or errors. 0.1 RPM (2.5 ~ 999.9 RPM). 1 RPM (over 1,000 RPM). Testing Range: 2.5 ~ 99,999 RPM (rate / min). Test Range Selection: Automatic. We cannot exclude variations in appearance like colours of the goods shown on the website against the goods you receive physically.
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