SMART SENSOR Level 2 Precision Integral Statistical Noise Tester 1. Sound pressure level range: 51dBA~142 dBA 2. Suitable for various occasions such as factories, offices, traffic roads, homes, and audio equipment. 3. AWA14421 model test capacitor microphone, frequency response 20Hz~12.5kHz, covering daily and industrial noise frequency bands. 4. Multifunctional measurement, the instrument has four measurement functions: "Sound Exposure Level", "Statistical Integration", "11 OCT", and "13 OCT". 5. Clear and visual interface, dual display modes of graphs and lists, real-time display of 6 indicators, intuitive operation. 6. Multiple measurement indicators, supports multiple measurement indicators such as LAFp, LAeq,t, LAeqt,T, LAFmax, LAFmin, and LApeak, list mode can display multiple indicators on one screen. 7. ACZ three-level frequency weighting, A-weighting simulates the human ear, G-weighting is suitable for industrial scenarios, and Z-weighting closely matches the original data. 8. Time weighting has F (Fast), S (Slow), I (Pulse), select the mode according to your needs for more accurate measurements. 9. Large 64G capacity; measurement results are saved in text file format on internal storage, which can be opened directly with PC Notepad. 10. IP65 dustproof and waterproof, ABS+PC shell material, strong weather resistance, suitable for various usage scenarios, fearless of harsh environments. 11. Standard probe windproof bulb, effectively improving measurement accuracy. 12. Carrying clips at the top and bottom for convenient carrying. 13. 5V1A USB cable charging, 2000mAh lithium battery. 14. Weight: 119g 15. Dimensions: 90 x 49 x 64mm