Specifications:

1.Measure Range:2.5~99, 999RPM
2.Resolution:0.01RPM(3~999).99RPM
0.1RPM(1, 000~9, 999.9RPM)
1RPM(over 10, 000RPM)
3.Accuracy:±(0.05%+1 digit)
4.Respones Time:≥1, 000RPM, 0.2second
<1, 000RPM, 0.5second
5.Memory Function:Single-mode automatic memory maximum, minimun, the last measurement, continuous mode can record 15000 measuring values.
6.Interface:MINI-USB interface

7.The lens with filter, only receive the red light with specific wavelength and filter the other light effectively
Measurable speed(RPM), frequency(Hz), Surface speed(m/min), with the accumulated date function.
White backlight LCD.Compalt valuable body.