Hi @Leeviathon, Yes, these can be used for measuring pH in saltwater tanks.

Haha I was thinking the same thing..y have them on the table and not talk about them

@smokoDRIFTER Yeah bro, bit of a tosser job. I ended up buying a pair, and if you want my opinion they're terrific. They have serious BALLS. I'm only running them @ 80% and they kick arse. Not cheap $650 each (aussie $). But really up changed my yields. Stay safe Smoko and greetings from Oz!

Thanks for that I will be getting one now had to find feed back about this light. Lol. And I am from Newcastle nsw lol small world...what size space is your set up??

@smokoDRIFTER Hey mate, I'm a Mexican lol, 4mx5. Use em on a 5kw string on a mover set at 700mm over the canopy getting 900 ppfd at 450 below the tops. They're a good unit.

@@FarCoff Mexico nice..how long is your bud (flower) cycle??I have lot of questions. Lol. Y do u dim it any reason?? Thanks for your info mate helps heaps as there isnt much info out there on the UFO lights