KD Tools Hand-Held Tachometer

Buy from Sears

Checks diesels, pumps, compressors, power take-offs and farm and construction equipment revolution speed. Tool is ideal where electric tachometer cannot be used. Length: 4-1/4 in. Diameter: 2-3/4 in. [more info]

KD Tools 2967 Hand Held Tachometer 100 to 4000 RPM

Buy from Tool King

Features and Benefits: Range: 100 to 4000 RPM (clockwise or counter-clock wise) Tachometer checks diesels, pumps, compressors, power take-offs and farm and construction equipment revolution speed... [more info]