I need to connect two ALD leak sensors to my Apex on another level so I need to extend the connection through the wall and floor. Ideally I'd prefer to run just one 4 conductor cable. The ALD leak sensors have a four conductor telephone jack connection but I've read that these are passive devices so I'm assuming only two of the four conductors are actually being used. Does anyone know what the pinout is for these sensors? The plan would be to splice the two wires from each sensor to the in-wall cable. Just need to know which conductors are actually being used.
Thanks,
Harry
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