Tachometer sensor - Hall effect sensor - Paulse generator
£14.50
This is a tachometer sensor. It is used to detect the movment of a engine flywheel or propshaft.
A magnet is attached to the flywheel or propshaft and the sensor is fixed in position 5mm away from the magnet as it turns. Each time the mignet passes the sensor a flat line pulse is generated and sent to the tachometer.
Wiring:
The sensor needs a 12v positive feed. a negative feed and there is a third wire to connect to the tacho.