Read some reviews on this. Pp of 300$ and made in china. Not knockin china as i have more then a few things from there that work just fine. Only issue i would have is what if you have a warranty issue. Do you have to return it to ROC? Personally i would go with a Shearwater or a Nitek. Local service if required and proven units that work. Nitek Q at DGE for 400$ fully unlocked. Multigas,trimix,OC,CC,Dig compass,log,adj GF, Rechargeable. I use one as a backup to my shearwater.