Extech 461830 Digital StroboTach 115VAC, 60Hz.

Digital StroboTach 115 VAC/60 Hz
Freeze motion and analyze rotating objects without contact. Checks and analyzes motion and speed by simply aiming and synchronizing its flash rate (FPM) with a rotating object — ideal for measuring the speed of moving gears, fans, pumps, motors and other equipment used in general maintenance, production, quality control, or laboratories.

Additional Features
Measurements are read on the four-digit LED display. High accuracy is maintained over a wide, dynamic range via exclusive microcomputer LSI circuit and crystal control time-base. Flash/Speed Rate of 100 to 10,000 FPM/RPM with duty cycles from 5 to 30 minutes and 1 second sampling rate. Tripod mount for stationary use. Operates on 115 VAC/60 Hz and comes complete with a 6-foot (1.9-meter) power cord.

Accessories
Spare Xenon Lamp (461834) for use with ExtechStroboTach Models 461830; estimated life 300 hours (package of two).