Wind speed range: 0 to 111 mph (0 to 178 kmh); rainfall range: 0 to 393.6 in. (0 to 9999.9 mm). Requires 5.0-Volt power adapter (included) and 3 AA (optional) batteries for backup; Thermo-hygro & Rain sensors both require 2 AA batteries; Wind sensor requires 2 C batteries (batteries are not included); Bonus display: LTV-D1 requires 2 AAA alkaline batteries.
eBay