<p>&nbsp;</p> <p>Sound level meter with a decibel measurement of 30-130dB</p> <p>Test how loud your speakers are, how about your mower, or the neighbours mower? That party up the road? Health and safety issues in the workplace too?<br><br>Comes boxed & with instructions.</p> <p>1) Measurement range : 30~130dB.<br>2) Frequency weighting : 'A' weighting<br>3) Maximum and Minimum value hold function.<br>4) Data Hold function.<br>5) Red back light alarm and sound alarm.</p> <p>Specifications:</p> <p>Brand name: Smart Sensor <br>Display: LCD display &nbsp;<br>Measuring range: 30-130dBA<br>Accuracy: &plusmn;1.5dB &nbsp;<br>Frequency range: 31.5Hz-8.5KHz &nbsp;<br>Sampling rate: 2 times/second<br>Data hold: Maximum and Minimum hold &nbsp;<br>Digital display: 4 digital&nbsp;Resolution &nbsp;0.1dB &nbsp;<br>Temperature measurement range: &nbsp;-10&deg;C-50&deg;C(14&deg;F-122&deg;F)<br>Temperature accuracy: &plusmn;2&deg;C &nbsp;<br>Temperature resolution: 0.1&deg;C<br>Microphone: 1/2 inch Electret Condenser Microphone &nbsp;<br>Power supply: AAA size battery*3pcs<br>Item size:&nbsp;152*52*27cm &nbsp;<br>Item weight: 81g<br>Package size: 195*75*4cm &nbsp;<br>Package weight: 130g</p>