Microcomputer technology (CPU), electro-optical technology.

Anti-interference technology of advanced technology, such as non-contact speed

Measurement and detection of moving objects and surfaces

Defect.

Large screen liquid crystal display with backlight

Digital control to adjust the Flash frequency

Low power consumption

Measuring range: 60~19,999RPM

Coarse/fine adjustment range:

﹤ 1,000RPM coarse ± 10RPM

Fine adjustment ± 0.1RPM

≥ 1,000RPM coarse ± 100RPM

Fine adjustment ± 1RPM

Accuracy: ± 0.05%

Resolution: ﹤ 1,000RPM:0.1RPM

≥1,000RPM: 1RPM

Power supply: 4x1.5V AA battery