<b>Brief Description:</b><br> <br> RISEPRO® decibel meter is a portable, easy to use and handy instrument for sound quality measuring, monitoring and controlling in office, home, school, traffic, audio system and construction site. The meter has wide range of applications such as noise pollution studies, research and other industrial use.<br> <br> <b>Specifications:</b><br> <br> <li>Sound Level: 30 ~ 130 dB</li><br> <li>LCD display: 1/2 Inch and 3 Digits</li><br> <li>Response Time : 0.5 second</li><br> <li>Resolution: 0.1 dB</li><br> <li>Accuracy: ±1.5 Db</li><br> <li>Data Hold, Max, Min and Auto Power Off</li><br> <li>Backlight</li><br> <li>Frequency Range: 31.5 Hz ~ 4 kHz</li><br> <li>Frequency Weighting: A</li><br> <li>Time Weighting: FAST (125mS)</li><br> <li>Microphone: 1/2 inch electret condenser microphone</li><br> <li>Power Supply: one 9V battery</li><br> <li>Power Life: about 50 hours (alkaline battery)</li><br> <li>Operating Temperature: 0 ~ 40 ˚C (32 ~ 104 ˚F)</li><br> <li>Operating Humidity: 10 ~ 90 % R.H.</li><br> <li>Storage Temperature: -10 ~ 60 ˚C (14 ~ 140 ˚F)</li><br> <li>Storage Humidity: 10 ~ 70 % R.H.</li><br> <li>Dimensions: approx. 170 (L) x 58 (W) x 35 (H) mm (6.7 x 2.3 x 1.4 inch)</li><br> <li>Weight: approx. 107 g </li><br> <br> <b>One Set Included</b><br> <br> <li>1 x Sound Level Meter</li><br> <li>1 x Sponge Ball / Windscreen</li><br> <li>1 x Instruction Manual</li><br> <li>1 x Carrying Pouch</li><br> <li>Premium color gift box</li><br>