Krupp Engine R.P.M Meter August 20, 2021August 20, 2021 admin Name – Krupp Engine R.P.M Meter R.P.M Range- 0 to 3000 Display Voltage- 4 Digit 7 segment LED display MicroController Unit- PIC16F677 8bit FFT Voltage Regulation- 7% (actually) Temperature- ( -45 to 85 Centigrade ) Warranty – 1 Year