Photo Tachometer DT-2857

Photo Tachometer DT-2857 Applications: Photo Tachometer DT-2857 is used to measure rotative velocity, surface speed, frequency of motor. Applicable to the product departments of: *motor, fan, paper-product, chemical fiber, washing-machine, automobile, airplane, steamer etc. *Series:digital Tachometer,motorcycle tachometer,engine tachometer etc. Features: * Measuring RPM is safe & accurate without attachment to object. * Digital display with no guessing errors. * Wide