Feature:1. SENSITIVE AND ACCURATE: The sound level meter use a capacitive microphone sensor for excellent sensitivity and accuracy2. LCD 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 night3. INTERFERENCE RESISTANT: Decibel meter has a windproof hood design, which can receive sound more accurately and filter the influence of wind on sound4. WIDE FREQUENCY RANGE: With a frequency response of 31.5Hz‑8kHz, noise meter can measure a wide range of frequencies5. PORTABLE AND CONVENIENT: Small and lightweight, this sound meter can be taken anywhere for on the go measurementsSpecification:Item 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: 0-40℃Working Humidity: 10-90%RHStorage Temperature: -10 to 60℃Storage Humidity: 10-75%RH.Package List:1 x Digital Noise Meter1 x User Manual