<b> Need to Test if a Noise Source in Your Neighborhood or at Work is Dangerously Loud?</b><br><br><b> Use this Decibel Sound Level Meter to Get Convincing Data</b><p> The ennoLogic eS528L is a professional sound level meter that provides reliable decibel readings over a range of 30 to 130 dBA with an accuracy of ±1.5dB. The large backlit display is easy to read in any environment. Use this instrument to measure and record noise levels in offices, factories, in your neighborhood or at home. You might want some solid data to convince your coworkers that they should wear ear protection at the worksite. Or fine tune your audio system at home. Or make sure your new aftermarket exhaust is operating below the maximum permissible noise level limits. The uses are endless, and you’ll soon find yourself walking around your home checking the sound level of everything.</p><p>To record data: Configure unit via USB with included software. Disconnect device from computer and record noise data. Reconnect to computer to download recorded data.</p> <p><b>Specifications</b></p><p> - Measurement range: 30~130 dBA<br> - Accuracy: +1.5 dB (reference sound pressure standard 94dB @ 1KHz) <br> - Standard: IEC61672-1:2013 Class 2<br> - Frequency response: 31.5~8KHz<br> - Resolution: 0.1dB<br> - Frequency weighting: A/C<br> - 3 ½ digit LCD with analog bar graph<br> - Sampling rate: FAST: 125ms, SLOW: 1s<br> - Analog signal output (AC and DC) <br> - Power: 9V battery or external via USB <br> - Data recording: decibel levels with timestamp (not actual audio) in internal memory of 32000 data points, programming and upload via USB and software (Windows only!)<br> - Size: 8.5”x2.5”x1.25”<br> - Weight: 8.8 oz (250 g) including battery <br> - Package includes one eS528L, 9V battery, USB interface cable, software CD, and user manual </p> <p><b>Like all ennoLogic products, the eS528L comes with a 10-YEAR WARRANTY, HASSLE-FREE REPLACEMENT GUARANTEE, and 100% MONEY BACK GUARANTEE.</b></p>