Accurate Measurement: The sound level meter does not need to be touched, it can measure sound quality in various environments and display test results quickly and accurately. Sensor Sensitive: The sound level meter uses professional high-precision sensors with excellent sensitivity and accuracy. Its performance is stable and reliable. High Definition Screen: Large high-intensity LED-backlit screen, coping with bright light, night and other conditions. Auto-off: This sound level meter has an auto-off function and will automatically shut down after 3 minutes of inactivity, environmental protection and energy saving. Widely Used: This sound level meter is widely used in vehicle noise testing, industrial equipment noise testing and home noise testing.