Well I have been on the fence about ordering a Reef Fanatic PH monitor. The reviews are pretty good, and I like the LED constant read-out. It will match by JBJ heater controller and chiller displays. Reef Fanatic pH Monitor Well i finally pulled the trigger and ordered it. Waited a week for delivery. It shows up at 8:00 pm from UPS, on the right day. I open it up, and it is missing the calibration fluid.....DAMN!!!!!!!! I called Marine Depot, and they were very nice, and helpful as usual. He checked the other ones in the warehouse, and they were also missing the fluid. He went to their website, and they no longer show the fluid in the pic. However, the PDF file of the instructions still says included. Well Marine Depot is sending me the fluid at their expense. Pretty cool of them. They are not always the cheapest, but they have great customer service IMO. SUCKS I HAVE TO WAIT ANOTHER WEEK THOUGH!!!!! It sure looks pretty on the kitchen table though!!