* Large LCD display with backlight.
* Digital control to adjust flash frequency.
* Low power consumption.
* Range: 60 ~ 19,999RPM.
* Less than 1,000RPM: Coarse adjust: +/- 10RPM, Fine adjust: +/- 0.1RPM.
* Greater than or equal to 1,000RPM: Coarse adjust: +/- 100RPM, Fine adjust: +/- 1RPM.
* Accuracy: +/- 0.05%.
* Resolution: <1,000RPM: 0.1RPM =1,000RPM: 1RPM.
* 7.68in x 2.87in x 1.5in.
* Battery: 4x1.5V AA battery