1、DUAL SCREEN DISPLAY: It adopts dual screen display, which can display temperature and humidity separately, which is convenient for recording and measuring. 2、CLEAR SCREEN: The LCD screen, the screen display is clearer, and the reading is more convenient, which can improve your planting or home experience. 3、DIGITAL STORAGE: With digital storage function, test data can be stored in a certain range, which is convenient for you to compare temperature changes at different times. 4、ACCURATE DATA: High accuracy, composed of precise electronic components, more accurate measurement data, can help you better understand and monitor the current environment. 5、REAL TIME MONITORING: It is small in size, light in weight, easy to carry, can be easily fixed or installed when necessary, and can play a real time monitoring role. 1 x Thermometer1 x English Manual Item Type: Indoor HygrometerMaterial: ABSSize: Approx. 15x 8.7x 2.3cm/6x 3.42x 0.9inRough Weight: Approx. 176g/ 0.38lbBattery Parameters: 1 x AAA Battery(Not included)Indoor Temperature: 0℃～+50℃Outdoor Temperature: -40-70℃Temperature: ± 1.0℃Humidity: 10%RH-99%RHHumidity: ±5%Function: 1. Temperature/humidity Display 2. Celsius/fahrenheit Switch Display 3. Simultaneous Display of Indoor/outdoor Temperature 4. Size and Value Memory Function