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Alarm function It can be set to alarm when the sound value reaches a certain value, when the measured value exceeds the alarm value, the instrument will beep and flash for 2 minutes to lock the data.
Real time monitoring Provides the accurate data of the sound level in your surrounding.
Wide measuring range: 30 130dB, fast responding, stable and reliable performance.
Large Screen:Super large 9.6 inch LCD digital display with backlight that makes reading more clear and visually in dark areas
Operation instructions: 1. Power switch key: short press to turn on, long press to turn off. 2. Down key: Short press to decrease the value during setting, and long press to decrease continuously. 3. Up key: Short press to increase the value during setting, and long press to increase continuously. 4. Alarm ON OFF key: short press the alarm ON OFF, long press to set.