Indoor Environment Monitor, Real-Time Monitoring And Refreshing Of Noise/Temperature/HumidityMultifunctional Desktop Noise Meter, Comprehensive Monitoring Of Noise, Temperature, Humidity, Time (With Alarm Clock Function), Noise: 30-130db, Accuracy 1.5db, Temperature: 0-50, Accuracy 1/Humidity: 0 -100%Rh Accuracy 3%RhVarious Noises Can Always Be Heard In , Which Affects Normal Rest And Learning And Can Cause Mental Breakdown.Capacitive Microphone Sensor, Ultra-Thin Metal Vibration Film Practical Output Instantaneous ResponseCapacitive Microphone Sensor, Three Conductive Layers Determine Its Frequency Response And Sensitivity. The Diaphragm Is Lighter And The Response Speed Is Faster.Description: 1. Model: SW-525S2. Display: White Display3. Built-In Backup Lithium Battery: 4000mah 3.7V Lithium Battery4. Storage Function: 2S/Pen, Can Be Stored For One Year [Only Noise Data Is Stored]5. Communicate With Computer: Communicate With Computer Through Usb Cable6. Function: Alarm Prompt (Sound + Display); Alarm Clock Function7. Time Display: 24-Hour Format8. Temperature Display: 2 Digits9. Humidity Display: 2 Digits10. Power Supply : DC 5V 1A Type-C Usb Interface11. Measuring Range: 30-130DB12. Accuracy: 1.5DB (Based On Standard Tone, 94DB@1khz)13. Frequency Response: 31.5 Hz~8.5 Khz14. Frequency Weighting: A Weight15. Response Time: Fast (Fast)16. Microphone: 6mm Condenser Microphone17. Digital Display: 3 Digits18. Resolution: 0.1db(Less than100db)1db(Greater than100db)19. Working Temperature And Humidity: 0-40C10%-80%Rh20. Low Battery Prompt: Less than 3.6V 0.1Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The UseMaterial: ABScolour: As ShownPackage Contents: 1 x Multifunctional Desktop Noise Meter1 x USB CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.