1 . 5-digit LCD display, dual display with RPM/count and time
2. MAX / MIN / AVG / normal modes
3. Adjustable sampling rate (0.5-255s)
4. Automatic shutdown (cancellable)
5. Optional (on/off) laser pointer
6. Time and time setting
7. USB transfer to PC
8. Data retention, low power consumption, continuous operation for 40 hours
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