Specification Brand : BUZHI BulletPoint1 : High Accurate: The noise meter features a high-sensitivity, high-precision microphone sensor, capable of measuring noise levels from 30 to 130 dB, accuracy: ±1.5dB, resolution: 0.1dB. BulletPoint2 : A-Weighting, Fast/Slow Measurement: A-weighting is to simulate the frequency of low-intensity human ear noise, is it more professional for the detection of environmental noise. The Fast response rate is 125ms for general environmental measurements. Slow response rate of 1s for environmental measurements with relatively large variations in noise levels. BulletPoint3 : Date Hold, Max/Min Measurement: The sound pressure level meter has a Max/Min measurement value, which indicates the High/Low peak value of the sound produced over a certain period of time. The Data Hold function freezes the current reading on top of the sound measurement according to individual needs. BulletPoint4 : Digital LCD Display: energy saving screen, long press the backlight button to turn on a backlight, making it easy to view even in damn light. BulletPoint5 : Wide Application: Mainly used in residential area, construction section, factories, restaurants, entertainment and other various ocns of environmental monitoring, etc. BulletPoint6 : STANDARDIZED; Take advantage of three calibrated temperature points with the included NIST standards testing certificate. The calibration ensures all regulatory requirements for the instrument are met Color : Black & Red ExternallyAssignedProductIdentifier1 : 0780279474008 ExternallyAssignedProductIdentifier2 : 780279474008 ExternallyAssignedProductIdentifier3 : 00858777007018 IncludedComponents : No ItemName : BUZHI Sound Level Meter Nf-562 High-Precision Sound Level Meter Decibel Detector Handheld Noise Tester 30~130Db Noise Measuring Instrument ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 27 centimeters ItemPackageDimensions_Width : 21 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : sound-and-noise-meters Manufacturer : BUZHI Material : Glass Material1 : Acrylonitrile Butadiene Styrene (ABS) Material2 : Polycarbonate (PC) MeasurementAccuracy : 0.1mm ModelName : FTVOGUEbvfoai7gtr ModelNumber : Hilitandrax81fovnk NumberOfBoxes : 2 NumberOfItems : 1 PackageLevel : unit PartNumber : MSUS-E25800-HKX ProductDescription : NF-562 is a professional noise tester with portable size, stable functionality, the device can direct, accurate and fast test the decibel level in any environment; Mainly used in construction field, entertainment venue, living commy etc to monitor the noise level of the environment.