While most of us rely on our smartphones to tell us the current temperature, there are better ways. The SwitchBot Wireless Hygrometer Thermometer accurately monitors temperature and humidity both ...

THE method described here has been developed to measure the humidity of the air in very small and inaccessible places. The hygrometer is extremely simple, consisting of a piece of paper 1 cm. × 1.5 cm ...

Chinese tech giant Xiaomi has launched a new product under the MIJIA brand in China. The product is dubbed MIJIA Smart Thermo-Hygrometer 3 and is presently on sale on Xiaomi’s official JD flagship ...

IN connexion with Dr. J. Grant's letter 1, on paper hygrometers, some experiments made some months ago on an experimental paper-operated indicating hygrometer may be of interest. The instrument, in ...