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Holding Electric Magnet Lifting DC5V / 10N Solenoid Sucker Electromagnet module for Arduino UNO R3 / Nano / Mega2560
The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and an open-collector output.
A Reed contact switch is a normally open contact which closes in the presence of a magnetic field.