On Tue, 20 Nov 2012 17:25:08 -0500, "Michael A. Terrell"
wrote:
mike wrote:
magnet/reed switch from a burglar alarm door/window ajar sensor.
Outdoors? It wouldn't last. Depending on the type of latch, one of
several types of industrial position sensor would be the best bet.
And the gate is steel. Maybe the other way around, a coil whose
inductance changes with gate position?
...Jim Thompson
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