Dual 1-10V and Socket Interface Expansion Card

hi i was just wondreing if the dual interfce card takes up one or two spaces in the the profilux i have the pro 2 ex im also going to upgrade if it only takes up one slot i will put in redox an ph probes and redox and conductiverty probe and just wanted to see if i had space thanks (sorry about the spelling):)

like all cards: only one slot is needed

thanks for that i was also wondering if the redox probes will fit in to a aquamedic nitraducter400 thanks again:)