Compact to carry: comes with 2 pieces of mini hygrometer thermometers, compact in size and lightweight, does not add burden or take up much space, easy to carry anywhere, sufficient quantity for daily use and replacements Create a comfortable living condition: our round digital humidity gauge monitor measures both humidity and temperature for indoor and outdoor environments, allowing you to adjust humidifier and dehumidifier settings based on readings to maintain a comfortable living environment Fahrenheit and Celsius: features a button on the back of the electronic humidity and temperature meter for easy switching between Fahrenheit and Celsius by pressing the conversion button High accuracy: the indoor and outdoor hygrometer thermometer updates temperature and humidity readings every 10 seconds, with a temperature range of -58F to 158F (-50C to 70C) and a humidity range of 20% to 90% RH, providing accurate and reliable data Clear to read: these digital indoor humidity gauges are made of high-quality ABS material for durability and long-term stability, designed with a clear LCD display for easy reading of current measurements