I know ur looking for elite, but I have the reef keeper lite. Its upgradable. I started to upgrade already with it with the sl1 and the Ph probe. It already comes with the temp probe. I used it like 8 hrs. Lol. I'm still new the saltwater gig. And I like being hands on everyday. I test like every 5 days and 5% water change once a week. $125 firm.