Description: <br>The Sound Level Meter is versatile device for measuring sound strength in an acoustic environment-loud or soft; high pitched, low-pitched; inter-mittent or continuous. This meter can be used in measuring noise of various occasions and appliances such as factory, office, home, traffic route, acoustics, air-conditioner refrigerator, etc. You can test surround sound system to see exactly how much sound each to see if any adjustments need to be done. <br> <br>Features: <br> <br>Super large 9.6 inch LCD digital display with backlight that makes reading more clear and visually in dark areas. <br>Wide measuring range: 30-130dB, fast responding, stable and reliable performance. <br> <br>Real-time monitoring, provides the accurate data of the sound level in your surrounding. <br> <br>Alarm function. When the measuring value is over the alarm value, the meter will make a sound beeping and lock the data with blinking for 2 minutes. <br>Wall hanging type. With the hanging hole, it can installed on the wall to or free stand on the table. <br>Application: families, factories, offices, hotels, hospitals, laboratory, theaters and audio systems, etc. <br> <br>Specification: <br>Model <br>SW-525A <br> <br>Measurement Range <br>Resolution <br> <br>Accuracy <br>±1.5dB <br> <br>Frequency Response Range <br>31.5Hz~8.5KHz <br> <br>Frequency Weighting <br>A <br> <br>Response <br>Fast <br> <br>Resolution <br>0.1dB(<100dB), 1dB(>100dB) <br> <br>Alarm Reminder <br>Yes <br> <br>Alarm Output <br>Yes <br> <br>Storage Function <br>No <br> <br>Communication <br>No <br> <br>Power Supply <br>DC5V 1A micro USB <br> <br>Product Size(appr.) <br>23 x 13 x 2.8cm / 9.1 x 5.1 x 1.1in <br> <br>Package Weight(appr.) <br>588g <br> <br> <br> <br> <br>Package Included: <br>1 * Sound Level Meter <br>1 * USB Cable <br> <br>Instruction: <br>1. Power ON/OFF Key: short press for power on, hold for power off. <br>2. Down Key: short press for reducing value while setting, hold for continuous reducing. <br>3. Up Key: short press for increasing value while setting, hold for continuous increasing. <br>4. Alarm ON/OFF Key: short press for ON/OFF alarm, hold for setting.<br>1、Super large 9.6 inch LCD digital display with backlight that makes reading more clear and visually in dark areas <br>2、Alarm function. When the measuring value is over the alarm value, the meter will make a sound beeping and lock the data with blinking for 2 minutes <br>3、Application: families, factories, offices, hotels, hospitals, laboratory, theaters and audio systems, etc <br>4、Wide measuring range: 30?130dB, fast responding, stable and reliable performance. <br>5、Wall hanging type. With the hanging hole, it can installed on the wall to or free stand on the table