Extech Rht30: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy
Extech RHT30 Information the information about the Extech RHT30: Introduction The Extech RHT30 is a digital hygrometer and thermometer that measures relative humidity and temperature. It is a small, portable device that is easy to use. The RHT30 has a large LCD display that shows the current readings. It also has a memory function that stores the last 10 readings.