The DP8891 series waterproof digital thermometer features a wide temperature range and works as a portable unit or a wall-mount LCD meter. Battery powered, the unit is easy to use and is Celsius and Fahrenheit switchable. Connected together, the meter and probe carry an IP67 rating, a.k.a., waterproof. The DP8891 series comes with probe, probe holder, four AAA alkaline batteries, and wall-mount hardware. Price starts at $159. OMEGA ENGINEERING INC., Stamford, CT. (800) 872-9436.