Is it possible to open up a reed sensor enclosure and replace the reed with just a hall sensor itself or does the hall sensor need any additional circuity? The hall sensor enclosure seems to be the same as a reed sensor enclosure but, of course, the hall sensor needs 3 wires. I haven't opened up a hall sensor enclosure to see what's inside. I'm wondering if a simple swap out of a reed for a hall sensor can be done to save a few bucks or should I just part with the $50 to get a hall sensor assembly from Venture. Apparently, Venture won't sell the hall sensor without the magnet (which looks exactly like the magnet for the reed sensor) or without the standoff (which looks exactly like the standoff for the reed sensor).