Hand-held tachometer with LCD (DT-105A-12C) or LED (DT-107A-12C) for accurate contact measurement of speed and length of elevator governor cables, hoisting ropes, cables and tapes etc. as well as revolutions of engines or shafts. It provides exact measurement of revolutions per minute, total revolutions, length and velocity with various metric and English units. Hand-held tachometer with automatic and manual memory (MAX, MIN, last and 10 seperate readings) for recall in display. This easy to use tachometer is housed in a rugged aluminum housing and has a thread for tripod.