Item Type: Weather Meter_x000D_Model: ST9866A_x000D_Material: Plastic_x000D_Weight: Approx. 395g / 13.9oz_x000D_Working Temperature: -10 - 50_x000D_Working Humidity: 1-95% RH_x000D_Product Size: Approx. 144x70x26mm / 5.7x2.8x1.0in_x000D_Battery: 2000mAh 3.7V Lithium Battery (Shipped With Built In Battery)_x000D_Functions: Measurement Units, Alarm Settings, Calibration Correction, Data Viewing, Data Curves, Storage Capacity, Timed Recording, Date Settings, System Settings, And Computer Connection_x000D_Wind Speed:_x000D_Measurement Range: 0.6m/s-30m/s_x000D_Resolution: 0.1m/s_x000D_Accuracy: (0.5/s+0.05 X Indicated Wind Speed)_x000D_Illuminance:_x000D_Measurement Range: 10-20000Luminous Flux/FC_x000D_Resolution: Luminous Flux_x000D_Accuracy: 4% Luminous Flux X Reading_x000D_Ultraviolet Rays:_x000D_Measurement Range: 0.0-15.00mW/cm2_x000D_Resolution: 0.01mW/cm2_x000D_Accuracy: 1.0mW/cm2 X Reading_x000D_Atmospheric Pressure:_x000D_Measurement Range: 1-110Kpa (10-1100mbar)_x000D_Resolution: 0.1kpa_x000D_Accuracy: 0.1Kpa X Reading_x000D_Temperature:_x000D_Measurement Range: -10-60 (14-140)_x000D_Resolution: 0.1 (0.1)_x000D_Accuracy: 2_x000D_Humidity:_x000D_Measurement Range: 5-99%RH_x000D_Resolution: 1%RH_x000D_Accuracy: 40-80%RH; 4%RH Other Ranges: 7%RH_x000D_Wind Speed Record Storage: _x000D_Illumination Record Storage: _x000D_Ultraviolet Ray Record Storage: _x000D_Atmospheric Pressure Record Storage: _x000D_Temperature Record Storage: _x000D_Humidity Record Storage: _x000D_Time Record Storage: _x000D_Time Setting: _x000D_Alarm Setting: _x000D_Data Record Export: Connect The Type C Data Cable To The Computer And Export It In TXT Format_x000D_Automatic Shutdown Setting: Timed Automatic Shutdown (0-60min)_x000D_Data Record Storage: 200000 Data Records (Once Every Five Seconds, Can Be Recorded Continuously For Ten Days)_x000D_Temperature Unit Conversion: / Conversion_x000D_Time Display: Year Month Day Hour Minute Second_x000D_Recording Mode: Timed Record Storage (With A Time Interval Of 3-60 Seconds)_x000D_Display Screen: 2.4 Inch TFT Color Display_x000D_Charging Interface: Type C (DC 5V) 1Multi Functions: Weather meter can detect wind speed, ultraviolet radiation, light, atmospheric pressure, altitude, and temperature and humidity, and can be monitored in real time. It also has data storage function and can view the required data at any time. The weather meter provides calibration function, which can be manually calibrated when there is a deviation in the data, making it convenient for subsequent use. 2Set Low and High Numerical Alarms: Users can set low and high numerical alarms on their own. When the monitoring results exceed the preset alarm settings, the pocket weather meter will sound an alarm and the screen will display data in red. 3Calibration Correction: On the settings menu page, select calibration correction, select the desired calibration function, and press the up and down keys to modify it. 4Data Cable Connection and TXT Format: Support Type C data cable connection to computer for exporting data, and TXT format can store 200000 data transactions. 5Menu Interface: The local menu interface allows for data recording and time curve viewing, allowing for detailed data analysis at any time. 6Compact and Portable: The handheld weather meter has a built in lithium battery charging function, making it easy to carry and use outside, energy saving and environmental. 7High Definition Screen Display: High definition large screen display, high definition backlight, and clear display at night 8Fan Blade Probe Protective Cover: The protective cover of the fan blade probe can be pushed open for measurement. 1 x Storage Bag 1 xWeatherMeter 1 x USB Cable 1 x Manual