P494A0021300A00 - EMERSON ASCO - Series 494 Reed Sensor
When used with pneumatic cylinders, these magnetic reed switches are mounted on cylinder tubes to help detect the presence of a magnetic field generated by the magnet on the cylinder piston. This then attracts the metal reeds together, signalling the electric circuits to switch on the magnetic sensor.
Manufacturer Product Reference: P494A0021300A00
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