3 Review(s)

The hygrometer is the amount of water vapor in the air. Above 50%, the air is too humid, the air charged with water vapor condenses on cold surfaces (window frame wallpaper), creating an environment conducive to the proliferation of molds and mites. A dehumidifier is necessary. Below 40%, air attacks the nasal mucous membranes and irritates the respiratory tract. Lack of ventilation, heating and air conditioning dry the air. Thus: it is common in winter, in homes too heated and unventilated, to see the humidity drop. A humidifier is needed. Multi-function: ?The humidity gauge displays the indoor and outdoor temperature, humidity percentage, clock, alarm. Range and Accuracy: ?Temperature measurements: -10 °to 50 °C; Moisture measurements (min / max): 20% to 99%; Accuracy ± 1 °C and ± 5% RH Memory Function: ?When press button "MEMORY", the inside outside thermometer will display the temperature and humidity date of memory maximum and minimum. Outdoor Temperature Probe:? With a sensor cable for outside temperature, insert the sensor cable and press the outside button, measure more accurate.