Extech 461995

Accurate up to 0.05%, 0.1 (0.5 to 999.9) to 0.1 RPM Resolution, Contact Tachometer 8-1/2 Inch Long x 2.5984 Inch Wide x 1-1/2 Inch Meter Thick, 0.5 (Contact) and 10 (Photo) to 19,999 (Contact) and 99,999 (Photo) RPM Measurement