?Backlight & Touchscreen?Humidity meter with 4'' large LCD display features backlight and touchscreen, making it easier to read in dim light conditions and simple operation ?High Accuracy?Room thermometer indoor is highly accurate to ±1°F/°C and ±2%-3%RH, ideal for living room, baby room, kitchen, greenhouse, guitar room, office and cellar ?Responsive Readings?Humidity reader indicate current air condition ensures proper humidity control, benefit for skin, allergen and other health problem ?Max & Min Records?Digital thermometer indoor displays MAX & MIN humidity and temperature records every 10s; Also displays the trend of each reading, allowing you to react ahead of time, such as adjusting thermostat or humidifier ?Multiple Mounting Options?Wall thermometer features tabletop, wall-mountable and magnet-mountable design, convenient mounting feature for every type of room; ?/? Selector; Powered by 3A battery (included)