The Extech 461895 combines a contact and photo tachometer into one instrument.
Specifications
Specifications for both models Photo mode Contact mode Range (RPM) 461895 5 to 99,999 0.5 to 20,000 Range (RPM) 461995 10 to 99,999 0.5 to 20,000 Accuracy 0.05% rdg +1 digit Sampling Time 1 Sec > 60rpm 1 Sec > 6rpm Surface Speed 0.2 to 6560ft/min 0.05 to 1999.9m/min Resolution 0.1rpm (< 1,000 rpm) 1rpm (>1000rpm) Power 4 AA batteries Dimensions 8.5 x 2.6 x 1.5”(215 x 65 x 38 mm) Weight 10.6 oz (300 g)
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