1. Multi-functional design: This electronic hygrograph sets temperature, humidity, time, alarm clock and other functions in one, to meet the indoor environment monitoring and life needs, practicality. 2. Indoor household: Designed for family use, it can monitor indoor temperature and humidity in real time to help you adjust the indoor environment and create a comfortable living atmosphere. 3. Digital display: Using luminous digital display, clearly visible, even in the dark can easily view the time, temperature and humidity data, convenient and practical. 4. Compact and portable: small size, easy to carry, can be placed on the desktop, bedside and other any position, does not take up space, convenient to check the temperature and humidity and time at any time. 5. Dry and wet temperature integration: it can not only display the indoor temperature, but also monitor the indoor humidity in real time, reminding you to adjust the indoor humidity in time, keep fresh, and fully care for the health of your family. The overall appearance is simple and fashionable, the function is practical and comprehensive, is a good helper for your home life. Product parameters: Display :LCD Humidity accuracy: 3% Product material :ABS Product size :11*9.3*2.4cm/4.33*3.66*0.94inch Power supply :2 No. 7 batteries, equipped with batteries Product accessories: manual Temperature range :-20℃70℃ Gross weight :130g Humidity range :10%90% Color box size :12*3.2*10.3cm/4.72*1.26*4.06inch Packing quantity :100 pcs Temperature resolution :0.1℃ Humidity resolution :1% Temperature accuracy: 1.5℃ Functions: Time display/Temperature display/humidity display/Year, month and day display/week display/large screen display/comfort reminder/alarm clock function/luminous function