Hall Effect Sensor. Bipolar Latch. Unipolar. Linear. Omnipolar. Brush-less DC Motor Commutation. RPM Detection. Robotic Control. Consumer and industrial position sensor. Position Indicator/Sensing. Proximity Indicator. Rotation Indexing. Damper or valve position control in HVAC (Heating,ventilation, air-conditioning) equipment. Magnetic encoder for building access. Flow meters/Flow rate sensing. Float-based fluid level sensing. Displacement sensor in hospital beds and medical equipment. Medication bin monitor on portable drug carts. Ideal for making electromagnets. LED blinkers and pulsations. Relays. Electronic communication. Inductors. Solenoids. Small Transformers. Motors. Timers. Automotive. Industrial. Environmental Solutions.