Feature 1SENSITIVE AND ACCURATE: The sound level meter use a capacitive microphone sensor for excellent sensitivity and accuracy 2LCD BACKLIT DISPLAY: The digital sound level meter has a large, high strength backlit screen to easily cope with harsh environments such as bright light or at night 3INTERFERENCE RESISTANT: Decibel meter has a windproof hood design, which can receive sound more accurately and filter the influence of wind on sound 4WIDE FREQUENCY RANGE: With a frequency response of 31.5Hz8kHz, noise meter can measure a wide range of frequencies 5PORTABLE AND CONVENIENT: Small and lightweight, this sound meter can be taken anywhere for on the go measurementsItem Type: Sound Level MeterMaterial: ABSBattery: 3 x AAA battery(not included)Frequency Response: 31.5Hz-8kHzMeasuring Range: 30-130dBAccuracy: 1.5dB(94dB at 1KHz)Display Resolution: 0.1dBOperating Temperature: 0-40Working Humidity: 10-90%RHStorage Temperature: -10 to 60Storage Humidity: 10-75%RH .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Digital Noise Meter1 x User Manual