How do two reed switches having different operate ampere turn (OAT) differ ?

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How do two reed switches having different operate ampere turn (OAT) differ ?

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When two identical magnets approach two reed switches of different operate AT, the one with the lower operate AT, being more sensitive to magnetic fields, will close first. When an application requires a reed switch to only operate within a specific distance, and is flexible in terms of release distance, reed switches with an “L” in the ordering code denoting low release, suit best.

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