Made 3 today, one with a 4ft, 6ft, and 8ft cable. Used red canvas mesh(same as my ATS), and some 18g wire, and a small bit of solder to stiffen it up.
$13 versus $89.97 in just sensors, Thanks guys!
Paired with my DIY Dual(12pin total) Break Out Box($24.40 for 12pins, not 6) that I use with a handful of other float switches,
http://www.reefcentral.com/forums/sh....php?t=2383435 .
So 3 leak sensing probes($13), a BOB ($12/using half of the above BOB build) setup for under $26, versus almost $165 for a module and 3 probes. Not bad!