Features Portable Sound Level Meter：A practical little tool great for noise pollution monitoring, home theater setup, health and safety compliance, vehicle noise testing, etc. Widely Application:Designed to meet the measurement requirement of sound quality control in various environment.Ideal for testing music recording, neighbor noise complaints, industrial settings, office settings, speech therapy & more. Anti-interference:Decibel meter has a windproof hood design, which can receive sound more accurately and filter the influence of wind on sound. Sensitive and Accurate:The sound level meter uses a capacitive microphone sensor with excellent sensitivity and accuracy. HD Digital LCD Display:Larger legible LCD display with backlight,which can quickly show the measurement, clearly and easy to read. Specification: Item Type: Sound Level Meter Material: ABS Battery: 3 x AAA battery(not included) Frequency Response: 31.5Hz-8kHz Measuring Range: 30-130dB Accuracy: ±1.5dB(94dB at 1KHz) Display Resolution: 0.1dB Operating Temperature: 0-40℃ Working Humidity: 10-90%RH Storage Temperature: -10 to 60℃ Storage Humidity: 10-75%RH Package List:1 x Digital Noise Meter1 x User Manual Package List 1 x Digital Noise Meter 1 x User Manual