4.5VDC Speed Sensors:

Speed sensor is a type of sensor which measures the speed of a moving object.

Types of speed sensors:

• Magnetic speed sensors: Sensors which use magnetic field to detect the rotational speed of a wheel or shaft
• Optical speed sensors: Sensors which use an optical beam to detect the movement of an object
• Hall effect speed sensors: Sensors which use hall effect to the measure the rotational speed of a wheel or shaft
• Capacitive speed sensors: Sensors which use change in capacitance to measure the rotational speed of a wheel or shaft
• Inductive speed sensors: Sensors which use change in inductance to measure the rotational speed of a wheel or shaft