Measure Range: 2.5~99,999RPM
Resolution: 0.01RPM(3~999.99RPM)
　　　　　　0.1RPM(1,000~9,999.9RPM)
　　　　　　1RPM(over 10,000RPM)
Accuracy: ±(0.05%+1 digit)
Respones Time: �,000RPM, 0.2second
　　　　　　　 <1,000RPM, 0.5second
Memory Function: Single-mode automatic memory
maximum, minimun, the last measurement, continuous
mode can record 15000 measuring values.
Interface: MINI-USB interface
The lens with filter, only receive the red light with
specific wavelength and filter the other light effectively.
Measurable speed(RPM), frequency(Hz), with the
accumulated date function.

White backlight LCD. Compalt valuable body.