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Contact/Non Contact Optical Tachometer. Speed range for non-contact measurement is 30 rpm to 99,990 rpm, and contact base measurement is ..
Hand held digital contact/non contact tacho kit. Ranges optical/non contact 5~200,000 RPM, contact 0.5~20,000 RPM. Display 5 digits, 5 al..
Tags: chadwick helmuth,