CDN FT220 FloatingThermThe FT220 floating thermometer simplifies measuring of liquid temperatures. The waterproof thermometer has an IPX6 rating, polycarbonate lens and 304 stainless steel housing. It is enclosed in a stay-cool buoy that floats on the surface of a liquid and is removable for easy cleaning. The 1-inch diameter display measures temperatures from 20 degrees F to 220 degrees F.