Extech 461893 Accurate up to 0.05%, Noncontact Tachometer

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 RPM Resolution, Noncontact Tachometer 6.2992 Inch Long x 2.3622 Inch Wide x 1.6535 Inch Meter Thick, 2 to 99,999 RPM Measurement

Accurate up to 0.02%, Contact and Noncontact Tachometer 8 Inch Long x 9 Inch Wide x 1-3/4 Inch Meter Thick, 1 to 99,999 (Optical) and 19,999 (Mechanical) 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...