Features 1. The screen is flipped; 2. Acceleration high and low frequency switching measurement; 3. High frequency (1KHz~10KHz) low frequency (20Hz~1KHz) 4. Curve display; 5. File save view; 6. Power display; 7. Double measurement button; 8. Flashlight; 9. Screen brightness; 10. Chinese and English choices; 11. Set the shutdown time; 12. Machine grade;
