I guess I should have made a post here instead of in the equipment forum. I purchased this to see if it works as well as my Pinpoint salinity meter. http://cgi.ebay.com/DIGI-REEF-SPECI...yZ117435QQssPageNameZWDVWQQrdZ1QQcmdZViewItem My Pinpoint readout screen is going bad, so for the money I figured what the heck. I will post how it does in the next few days. Its also a cheaper alternative for other reefers who may be interested in an electronic way of measuring your salt levels.