1. Accuracy: 1.5dB (based on standard sound source, 94dB@1KHz)
2. Frequency range: 31.5Hz-8.5KHz
3. Dynamic range: 3.50dB
4. Measuring range: 30-130dB
5. Digital display: 4 digits, resolution 0.1dB, sampling rate 2 times/second
6. Dynamic scale display: 1 scale represents 2dB, sampling rate is 2 times/second
7. Dynamic scale range: 30-130dB
8. Overload indication: “OVER” and “UNDER” symbols indicate
9. Dynamic characteristics: two reaction speeds: FAST (fast) and SLOW (slow)
10. Microphone: 6mm condenser microphone
11. Battery: 600Mah/3.7V lithium battery
12. Dual mode switching, sensitivity adjustable
13. 0.6mm high-precision sensor, accurate capture, immediate response 6cm sound guide tube & silicone pad sound insulation and waterproof pad, enhanced performance
14. Built-in 600Mah lithium battery, Typc-C charging head interface
15. VA color screen, ultra-clear backlight, clear readings, with