Multi-function display on the same screen: Capacitive microphone + high-precision temperature and humidity sensor, accurate and reliable data. Curve recording, visualize noise: switch to curve mode, you can clearly see the noise changes within a period of time. Screen: 2.0-inch TFT color screen Display: 4 digits, resolution 0.1dB Time weighting characteristics: Fast (FAST) 125 milliseconds; Slow (SLOW) 1 second Frequency response: 31.5Hz-8.5KHz Dynamic scale display/value update: Fast 0.5 times/second; Slow 1 time/second Dynamic range: 3.50dB Measurement range: 30dB-130dB Color: Black Material: plastic Package Contents: 1 x decibel meter 1 x USB cable 1 x storage bag Only 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.