Product Features:
A tachometer (RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute (RPM) on a digital displays.
Product Specifications:
Measuring Range : 2.5~99999RPM
Rotating Speed Resolution : 0.1RPM (2.5~999.9RPM),
1RPM (Over 1000RPM)
Linear Rolling Speed Resolution : No
Measuring Distance : 50mm~500mm
Accuracy : ±(0.05%+1 digits )
Sampling Time : 0.8 sec(Over 60RPM)
Max / Min Measuring : Yes
Data Storage :Yes
Memories Clear : Yes
Range Selection : Auto
Battery Indication : Yes