Handheld Digital Tachometer Multifunction LCD Speedometer 2.5-9999 9RPM USB Interface Precision Speed Data Logger SM8238, Tech-Modul

- LCD screen, white backlight, no parallax.
- Automatic display prompt for low voltage.
- Frequency measurability.
- The rotating shaft's linear speed is measurable in the case of a given radius. The rotating shaft's radius may be set at 2-999mm.
- The 4:1 low-rotating speed measurement mode promises a more accurate measurement of the rotating speed.
- A filtering lens can receive the red light of specific wavelengths only, thus avoiding parasitic light effectively.
- The function of automatic recording of the maximum, the minimum and the last value, and the continuous mode which can realize savings of over 18,000 data groups.
- A MINI USB interface makes data transmission easier.