With touch screen function, this thermometer is convenient to use. You can use this meter to measure temperature and humidity, set alarm clock, bringing much convenience to your life. Made from ABS material, this temperature humidity meter is durable to use. The diameter is 9cm, and its thickness is 2.6cm. It is widely used for temperature and humidity measurement at home, office, workshop, school, market, warehouse and other place. Item Name: Digital Thermometer Material: ABS Temperature Range: 0 Degree Celsius - 50 Degree Celsius/32 Fahrenheit - 122 Fahrenheit Temperature Accuracy: -1 Degree Celsius - 1 Degree Celsius Humidity Range: 20 Percent - 99 Percent Humidity Accuracy: -5 Percent - 5 Percent Battery: 2 x AAA 1.5V Battery(Not Included) Functions: Clock, Backlight Function Introduction: Clock: The two dots in the middle of the hour and minute will flash when the clock is in the state. Alarm: When the alarm is in the state, the two points between the hour and the minute do not flash. The alarm lasts for 1 minute. Temperature: Range: 0 Degree Celsius - 50 Degree Celsius/32 Fahrenheit - 122 Fahrenheit, Accuracy: -1 Degree Celsius - 1 Degree Celsius, check once every 1 minute. Humidity: Range: 20 Percent - 99 Percent, Accuracy: -5 Percent - 5 Percent, check once every 1 minute. Key Sound Function: The keys have key tone, and the alarm sound can reach 80 decibels. Backlight Function: Press the MODE button, UP button, and DOWN button to light up for 8 seconds. Touch Function: 3 function keys with touch function. Features: Touch Screen, Multifunctional, Digital Display Size Details: Size: 9cm x 9cm x 2.6cm/3.54" x 3.54" x 1.02" (Approx.) Notes: Do not place the thermometer in a high temperature, high humidity or dusty environment. When the display becomes dim or the touch buttons are not sensitive, please replace the battery. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. How to Use: When the battery is installed, the screen will be displayed for 1 second, and the temperature and humidity will be detected. The backlight lights up for 5 seconds and enters the time state with a bleep sound. The default temperature of the battery is degrees Celsius. The initial time is 12:00 AM. In any state, press the MODE button to switch the display time and alarm. When no alarm is set, the alarm status is indicated by three horizontal bars (-:--). After setting the alarm time, the difference between the normal time and the alarm time is: the two points between the hour and minute of the normal time are beating, and the two points between the hour and the minute of the alarm time are static. Set time: In the time state, long press the MODE button for two seconds, the hour starts to flash, single press the UP or DOWN button to increase or decrease the time. Long press the UP or DOWN button to quickly increase or decrease the time. Press the MODE button again, the minutes begin to flash, single press the UP or DOWN button to increase or decrease the minutes, long press the UP or DOWN button, you can quickly increase or decrease the minutes. In the time state, long press the UP button for two seconds to achieve 12/24 hour conversion. Set the alarm: In the alarm state, long press the MODE button for two seconds, the hour starts to flash. Single press the UP or DOWN button to increase or decrease in increments, and long press the UP or DOWN button to increase or decrease rapidly. Press the MODE button again, and the minutes will start to flash. Single press the UP or DOWN button Package Includes: 1 x Digital Thermometer