Bought for use as a mechanical position sensor. Never made it to project because application wasn’t suited for magnetic reed switches due to high vibration (mounted on throttle control of small single cylinder engine). A reed switch can chatter on and off or fail mechanically due to high vibration. I checked several of the contacts and they work fine. Decent quality at low price so I put them in the parts locker for future use. Used a Hall effect sensor for the high vibration application which is a bit more complicated due to additional driver circuitry but it’s solid state and immune to shock and vibe. Gave them 5 stars for functional for alarm application and quality for the price.
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