AUTOMATICALLY ZEROED -- This photo tachometer can be automatically zeroed and store the last, minimum and maximum readings
DIGITAL CONTACT TACHOMETER -- This digital contact tachometer is small and light, easy to carry around, and very convenient to use
ACCURATELY MEASURE -- The visible red light beam of the LED can accurately measure the product speed and face speed
TACHOMETER MEASURING RANGE -- The contact measuring range of this tachometer is 0.5‑19999rpm, and the non contact type is 2.5‑99999rpm
AUTOMOBILE APPLICATIONS -- It can be used in applications such as automobile maintenance, mechanical engineering, and maintenance of industrial equipment