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Wall Mounted Noise Meter, Wall Mounted Sound  Meter 11in Screen High Sensitivity 30-130dB  For Classroom

<ul><li>4 IN 1 DECIBEL METER: This decibel meter has multiple functions, having a decibel meter is equivalent to having a , hygrometer and clock at the same time</li><li>11IN DISPLAY SCREEN: This large screen decibel meter has an 11 inch LED display with adjustable brightness for a clear, easy to use display</li><li>HIGH ACCURACY: The sound meter uses an intelligent air semiconductor sensor to test decibel temperature and humidity values, making it more sensitive, accurate and stable</li></ul>

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Specification: Item Type: Wall Mounted Sound Meter Material: ABS Display Method: LED Screen Atmospheric Pressure: 12.5 PSI- 15.4 PSI Sampling Time: 0.3 S Detection Temperature Range: -10 degrees Celsius -50 degrees Celsius Storage Temperature: -10 degrees Celsius -60 degrees Celsius Operating Environment, Storage Humidity: 20%-85% Detection Humidity Range: 20%-85% Accuracy: 5% Charging: 1000 mA 5V DC Battery : 1 x 2000mAh shipped with built in battery Unit: dBA Measurement Range: 30-130dBA Accuracy: ±1.5dBA Frequency Range: 50Hz-8.5kHz Frequency Weighting: A Screen Display: 0.1 dBA Sound Meter Unit dB: Green 1: 55.0 or less Green 2: 65.0-55.0 Orange1: 75.0-65.0 Orange2: 85.0-75.0 Red1: 95.0-85.0 Red 2: 95.0 or more Temperature Rating unit degrees Celsius : Green: 20-30 Orange: Below 20 Red: Above 30 Package List: 1 x Wall Mounted Sound Meter1 x Instruction1 x USB Cable1 x Installation Sticker2 x Screw2 x Expansion Tube

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