Sl2 salinity module with wet probe $150
SL1 module with wet ph probe $50
APC module with DC1 jeboa box $75
ALC module $50
2 RKM-PC4 power bars $65 each
Buy the complete set up for will include box of cable to connect modules, extra temp probes, extra ph probe $700
I bought to use on my 280 but never got it set up. Have several stand alones handling ATO and temp and Halides are on a commercial timer. Working well so not wanting to mess with it.