** important: Package included reflective sheeting tape, you must stick this tape(cut-to-size) onto the object and begin measure)** No-Contact Gun type digital tachometer with stable performance.
Automatic and Manual Measurement Functions. Measuring Range: 2.5 to 99999 RPM. Added: 10 pcs Silver gray to prevail in kind of basic white Wide angle reflectivity taps
Readings are displayed on a large, easy-to-read LCD screen; stores last, minimum, and maximum reading; features auto-zero adjustment
Measure RPMs of motors, machinery such as circular saws, speed of a lathes and other rotating devices
Accurate to +/- 0.02 percent and capable of measuring at a distance from 2-20 inches(50-500mm); RPMs measured over 0.5 second sampling time