Extech 461825

Accurate up to 0.1%, 0.1 (5 to 999.9) and 1 (1,000 to 99,999) RPM Resolution, Contact Tachometer 8-1/2 Inch Long x 2.5591 Inch Wide x 1-1/2 Inch Meter Thick, 5 to 99,999 RPM Measurement