Feature:1. Super Large LCD Display: This sound level meter features a super large HD backlit LCD screen which provides a clear display and easy readings.2. Wall Mounted Design: This LCD sound level reader features a wall mounted design that is easy to set up and great for continuous monitoring.3. High Accuracy: This decibel meter is highly accurate, with a measurement range of 30 to 130 dB, accuracy of ±1.5dB, and a frequency response range of 31.5Hz to 8.5KHz.4. Excellent ABS Material: This noise meter is made of excellent ABS material, which is sturdy and wear resistant, not easy to be damaged and has a long service life.5. Wide Application: This wall mount decibel reader has a wide range of applications and can be used at home, school, office, factory, and so on.Specification:Item Type: Wall Mounted Noise MeterMaterial: ABSBattery Model: Lithium Battery ( Shipped With Built In Battery )Battery Capacity: 3600mahStorage Function: 2 Seconds/Pen, Can be stored for one yearCommunication With Computer: Communicate With Computer Through USB CableAlarm Prompt ( Sound and Display ): YesAlarm Output: YesTime Display: YesTemperature Display: YesHumidity Display: YesPower Supply: Type C USBMeasuring Range: 30-130dBAccuracy: ±1.5dB ( Based on Standard Sound Tone, 94dB at 1KHz)Frequency Response: 31.5 Hz-8.5 KHzFrequency Weighting: A WeightingResponse Time: FASTMicrophone: 6mm Condenser MicrophoneDigital Display: 3 DigitsResolution: 0.1dB (<100dB) 1dB (>100dB)Operating Temperature: 0-40℃, 10%-80%RHOperating Humidity: -10-60℃, 10%-70%RH.Package List:1 x Wall Mounted Noise Meter1 x Data Cable1 x Manual