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Features:VA color bright screen: With VA color reverse display, it can be easily displayed and adapt to dark environmentDigital: Construction site noise measurement, digital noise meter, making noise detection easier, scene measurement displayApplicable place: Usually applicable to office, library, street, audio site, home and other placesNoise measurement: For outdoor noise measurements, windshields can be installed to avoid irrelevant noise.Prorective: Silicone handle, smart motherboard, safety protector.SpecificationMaterial: Plastic, siliconeelectric componentsColor: BlackSize(L x W x H): About 56 x 29.7 x 163.6 mm/2.2 x 1.17 x 6.44inchBattery: 3pcs AAA 1.5V battery(not included)Measurement range: 35dB ~ 135 dbDynamic range: 50 dBFrequency response: 31.5Hz ~8KHzAccuracy of noise: ±2.0 dBFrequency-weighted features: Weighted networkTime weighted: fast :125 ms, slow :1Microphone: 1/2 inch capacitor microphoneHigh and low noise tip: >100DB, display "Hi" symbol, <100DB, displaying the "LO" symbolTemperature range: -20℃ ~ 70℃/-4°F~158°FTemperature accuracy: ±1.5℃/2.7°FResolution: 0.1Value update: 300msBattery life: 60 hoursAutomatic shutdown: automatic shutdown after 15 minutes without operationOperating temperature and humidity: -20℃~60℃/-4°F~140°F, 10%RH~90%RH-Storage temperature and humidity: 20℃~60℃/-4°F~140°F, 10%RH~75%RHPackage included:1pc x Decibel Meter1pc x User ManualNotice:Due to the light and screen difference, the item's color may be slightly different from the pictures.Please allow 0.5-2cm differences due to manual measurement.