The simplest RPM measurement tool for quick and accurate motor speed measurements!
It includes a digital photo tachometer, 3 special reflective strips (about 24” in total length) and an instruction manual.
Just place a small piece of reflective tape on the rotating part and point the laser beam (see pictures).
Works on all brushless motors (kits #1-14). May also be used on conventional motors (kits #15-17 or any other design with rotating coil), however reflective material may slow down motor speed.
Requires one standard 9 Volts battery (not included).