1、When the temperature and humidity exceed the preset upper and lower limits, an alarm is triggered, the LED lights emit light and flash, and the corresponding upper or lower limit icon flashes. 2、Multi‑function, temperature detection, humidity detection, touch screen function, alarm switch, Celsius and Fahrenheit and other functions switch. 3、The temperature and hygrometer store and display the maximum and minimum humidity and temperature records of the past 24 hours, allowing you to know the changes in the surrounding environment at any time. 4、It has a fold‑out stand for easy placing on the desktop, moreover, there is a hanging hole on its back which enables you to hang it on the wall also. 5、This digital thermometer make your life more easier and is perfect for a lot of places, such as indoor, office, home, baby room, bathroom, flower room, etc. 1 x Thermohygrometer(Battery Not Included)1 x English Instruction Condition: 100% Brand NewItem Type: ThermohygrometerMaterial: ABSWeight: Approx. 125g/ 4.4ozProduct Size: Approx. 8.5 x 12 x 2cm/ 3.3 x 4.7 x 0.8inBattery Specification: 2 x AAA Battery (Battery Not Included)Measuring Temperature Range: 0℃-50℃Measuring Humidity Range: 20%-95%Functions: Temperature Detection, Humidity Detection, Touch Screen Function, Alarm Switch, Celsius and Fahrenheit SwitchingInstallation Method: Wall, Desktop, etc.