Extech 461920 Accurate up to 0.05%, 0.1 RPM Resolution, Noncontact Tachometer

Accurate up to 0.05%, Noncontact Tachometer 6.7 Inch Long x 2.8 Inch Wide x 1-1/2 Inch Meter Thick, 5 to 99,999 RPM Measurement

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...

Accurate up to 0.05%, Contact and Noncontact Tachometer 6.2 Inch Long x 2.3 Inch Wide x 1.6 Inch Meter Thick, 2 to 99,999 RPM Measurement

Accurate up to 0.05%, Contact and Noncontact Tachometer 7.4 Inch Long x 3 Inch Wide x 1.8 Inch Meter Thick, 0.5 to 99,999 RPM Measurement

Accurate up to 0.05%, 0.1 (5 to 999.9) and 1 (1,000 to 99,999) 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 5 (Photo) to 19,999...