Large LCD Display:Easy to read, shows temperature, humidity and time at the same time. Low power consumption, powered by one AAA battery (included). [Range and Accuracy] Measuring temperature range -50~+70, accuracy 1/1.8F; Measuring humidity range 10%~99%RH, accuracy 5%RH. Portable Design:Can be wall mounted or stand on the desktop, with alarm clock function, it is the perfect weather monitoring gadget for home office. Designed for Indoor Use:This digital thermometer hygrometer records maximum and minimum temperature and humidity memory, / switchable. Household Essentials:Helps you to keep an eye on the indoor temperature and humidity, it is the perfect companion for your humidifier and dehumidifier to ensure a comfortable living space.