AZ INSTRUMENT 8001

Simple and easy to use and read, Measure rpm from 10 to 99999 rpm, Auto range function, Contact rotating object by changing contact spare wheels, Non-sleep mode & hold function Lowest cost tachometer in the market Two ways to power on/ off Safe and easy to get rotation speed Non-contact measurement by red led beam Contact rotating object via convex or Concave contact tips Auto power off in 20mins inactivity Hold function freezes current reading Four rotation speed units are selectable in Contact mode: rpm, m/ min, ft/ min, yd/ min. Sleep mode can be disabled Low battery icon indicates weak power