Feature:1. Large HD screen with backlight for clear readings and easy use at night, widely used in factory, transportation, car, baby room and audio system office2. Measurement range: 30-130dBA, accuracy: 1.5dB, resolution: 0.1dB, there will be a warning sign when the standard exceeds the standard3. The Sound Level Tester locks the maximumsound decibels value and holds the current measurement readings4. Features high precision sensors with three sensitiveconductive layers and metal housing for durability and safe use5. Comes with windshield design for filtering wind interferenceSpecification:Description:DUKA FB1 Decibel Meter Mini Digital Sound Level Meter Range 30-130dB(A) Handheld Audio Noise Measure with LCD Screen Backlight MAX Data Hold Auto-offFeatures:Large HD screen with backlight for clear readings and easy use at night, widely used in factory, transportation, car, baby room and audio system officeMeasurement range: 30-130dBA, accuracy: ±1.5dB, resolution: 0.1dB, there will be a warning sign when the standard exceeds the standardThe Sound Level Tester locks the maximum sound decibels value and holds the current measurement readingsFeatures high precision sensors with three sensitive conductive layers and metal housing for durability and safe useComes with windshield design for filtering wind interferenceSpecification:Product name: Duka FB1 decibel meterMeasuring range: 30~130dBAAccuracy: 1.5dBFrequency response: 31.5Hz~8KHzFrequency-weighted characteristics: A-weightedResolution: 0.1dBWorking temperature and humidity: 0~40, 10~80%RHStorage temperature and humidity: - 10~60, 0~90%RHPower supply: 3*1.5V AAA batteriesProduct size/weight: 50*30*159.5mm/80.08gPackage size/weight: 18*8*5cm/200gNote:There is a little of difference according to manual measurement.Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.Package List:1*Duka FB1 decibel meter3*1.5V AAA batteriesPackage List:1*DukaFB1 decibel meter3*1.5V AAA batteries