Chamberlain ML500 engine limit switches

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Chamberlain ML500 and Wayne Dalton Push&Pull Engine Limiters

Also compatible with HE60 / HE60AS / HE60PY / PSGTA60 / GPD60 motors


Ref : 041C0521-1


These 2 magnetic sensors (I.L.S.) are fixed in the groove along the aluminium rail and "recognize" the beginning and end of the stroke when the carriage passes (thanks to the magnet inside it).