This instrument is mainly used for environmental noise measurement, noise suppression engineering monitoring, quality control, health protection monitoring, etc. Widely used in factories, offices, audio-visual venues, transportation roads, homes, engineering construction and other places that require noise monitoring and control.<br>Features:<br>1. Large digital LCD display, clear numerical values, easy to read.<br>2. It is easy to operate and does not require any settings. It can be used immediately upon startup.<br>3. Measurement range is 30 ~ 130dB. With upper and lower limit alarms.<br>4. The adjustable range of alarm time is 5~120 seconds (factory default of 120 seconds).<br>5. Alarm sound output function. Buzzing to remind you when the real time measurement is reach to the alarm level, and hold the data for 5s then back to normal mode.<br>6. With hanging holes, can be hangged on the wall.<br>7. Suitable for checking and monitoring the sound level for personal, families, business, studies, industrial, etc.<br>Specifications:<br>1. Measurement Range: 30-130dB<br>2. Frequency Response Range: 31.5Hz~8.5KHz<br>3. Frequency Weighting: A weighting<br>4. Response Speed: 8 times/second<br>5. Accuracy: 1.5dB (with sound calibrator 94dB 1000Hz)<br>6. Resolution: 100dB: 1dB<br>7. Power Supply Method: DC5V 1A<br>8. Power Supply Port Style: Type-C<br>9. Working Temperature: 0-40 <br>10. Working Humidity: 10%~80% RH<br>11. Storage Temperature: -10~60 <br>12. Storage Humidity: 10%~70% RH<br>Material: ABS<br>Item Size: 22.5 * 12.5 * 3 cm / 8.86 * 4.92 * 1.18 inch<br>Item Weight: 440g / 15.52oz<br>Package Size: 24.5 * 16.9 * 3.5 cm / 9.64 * 6.65 * 1.38 inch<br>Package Weight: 600g / 21.16oz<br>Package List:<br>1 * Noise Meter<br>1 * Type-C Power Cable<br>1 * User Manual (English)