High Accuracy Weather Meter Pocket Wind Temperature Meter for Wind Speed Ultraviolet Light Atmospheric Pressure Altitude Temperature Humidity Measurement Item Type: Weather Meter Model: ST9866A Material: Plastic Weight: Approx. 395g / 13.9oz Working Temperature: -10℃ - 50℃ Working Humidity: 1-95% RH Product Size: Approx. 144x70x26mm / 5.7x2.8x1.0in Battery: 2000mAh 3.7V Lithium Battery (Shipped With Built In Battery) Functions: Measurement Units, Alarm Settings, Calibration Correction, Data Viewing, Data Curves, Storage Capacity, Timed Recording, Date Settings, System Settings, And Computer ConnectionWind Speed: Measurement Range: 0.6m/s-30m/s Resolution: 0.1m/s Accuracy: ± (0.5/s+0.05 X Indicated Wind Speed) Illuminance: Measurement Range: 10-20000Luminous Flux/FC Resolution: Luminous Flux Accuracy: ± 4% Luminous Flux X Reading Ultraviolet Rays: Measurement Range: 0.0-15.00mW/cm² Resolution: 0.01mW/cm² Accuracy: ± 1.0mW/cm² X Reading Atmospheric Pressure: Measurement Range: 1-110Kpa (10-1100mbar) Resolution: 0.1kpa Accuracy: ± 0.1Kpa X Reading Temperature: Measurement Range: -10℃-60℃ (14℉-140℉) Resolution: 0.1℃ (0.1℉) Accuracy: ± 2℃ Humidity: Measurement Range: 5-99%RH Resolution: 1%RH Accuracy: 40-80%RH; ±4%RH； Other Ranges: ±7%RHWind Speed Record Storage: √ Illumination Record Storage: √ Ultraviolet Ray Record Storage: √ Atmospheric Pressure Record Storage: √ Temperature Record Storage: √ Humidity Record Storage: √ Time Record Storage: √ Time Setting: √ Alarm Setting: √ Data Record Export: Connect The Type C Data Cable To The Computer And Export It In TXT Format Automatic Shutdown Setting: Timed Automatic Shutdown (0-60min) Data Record Storage: 200000 Data Records (Once Every Five Seconds, Can Be Recorded Continuously For Ten Days) Temperature Unit Conversion: ℃/℉ Conversion Time Display: Year Month Day Hour Minute Second Recording Mode: Timed Record Storage (With A Time Interval Of 3-60 Seconds) Display Screen: 2.4 Inch TFT Color Display Charging Interface: Type C (DC 5V)