I'm selling my Apex Controller. Works flawlessly and I'm only selling because I got a new one. This comes with EVERYTHING included plus MORE! Includes Classic Apex Base Unit Controller, Apex Display Module, Long-life Temperature Probe, Energy Bar 8 and Lab Grade pH Probe PLUS Salinity Probe, ORP Probe, a second Temp Probe and a Neptune Systems Breakout Box! Get instant control on your tank! This whole kit retails for $715.00. This unit is SUPER CLEAN with ZERO corrosion. I require a $100.00 down payment hold, Its very hard to pack this up to keep the probes wet.