This product uses three modes of the cigarette lighter mode,the vibration mode and the ignition wire mode to measure the rpm of engine.Among them the vibration mode is the unique measuring mode of our company.Its working principle:When engine runs,the vibration frequency of its mechanic parts is directly proportional to the rpm of the engine.This mechanic vibration can be converted into electric signal by use of vibration sensor to test rpm of engine.
| Measuring ranges | (0~10,000)r·min-1 | |
| Resolution | 1r·min-1 | |
| Indication error | 0~1,000r·min-1 | ±10r·min-1 |
| >1,000r·min-1 | ±1% | |