We are offering open pan evaporimeter. pan evaporimeter instruments, open type that measures the rate of evaporation of water into the atmosphere, sometimes it is called an atmometer. Evaporation rates are so sensitive to the water supply and the nature of the evaporating surface. Data collected by evaporimeter often do not reflect true evaporation processes; hence, evaporimeter have limited use. This pan evaporimeter is manufactured as per is:5973