EdgeTech - 645 Two Channel Hygrometer Indicator / Logger
SensorPros recommends the "E+E - OMNIPORT30 Multifunctional Handheld Indicator" as its direct replacement.

EdgeTech - 645 Two Channel Hygrometer Indicator / Logger
SensorPros recommends the "E+E - OMNIPORT30 Multifunctional Handheld Indicator" as its direct replacement.