Honeywell SS549AT 20mA Unipolar Hall Effect Sensor

DC - Direct Current

Motor - A evice that converts electricity into motion

magnetic - A susbstance affected at a microscopic level by an applied magnetic field.

RPM - Revolutionss per minute, the number of rotations per minute around a fixed axel.

rotation - A circular motion of an object around a central axis

speed - A measurement of how fast an object travels between two points

disc - A round flat object often used in reference to a computer storage media

Hall - A room at the inside of an entrance of a house.

Fan - A piece of equipment that has blades that rotate to cool the air, can be installed within other equipment,

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