1. LCD Display: 5 digits, 18mm
2. Laser photo tachometer: 2.5 to 99,999 RPM
3. Contact Tachometer: 0.5 to 19,999 RPM
4. Surface Speed: 0.05 to 1,999.9 m/min
5. Laser photo tachometer: 0.1 RPM (2.5 to 9999.9 RPM) ; 1RPM (over 1000RPM)
6. Contact Tachometer: 0.1 RPM (0.5 to 9999.9 RPM); 1RPM (over 1000RPM)
7. Surface Speed: 0.01 m/min. (0.05 to 99.99 m/min.); 0.1m/min. (over 100m/min)
8. Sampling time: 0.8 sec. (over 60 RPM)
9. Test range selection: automatic
10. Memory: max value, min value and last value
11. Wide detecting distance: 50 to 500 mm (or 2 inch to 20 inch), applicable to laser photo tachometer
12. Time base: 6 MHz crystal oscillator
13. Used 3 x AAA batteries (not include)
14. Wide measuring range and high resolution
15. Measures exact RPM with no guessing or errors
16. Memorized the last value, max. value and min. value
17. Low battery power indication
18. Size: 18.4cm x 7.6cm x 3cm
