Sound Level Meter

Sound Level MeterAi-407Features:Automatic Backlight Display Maximum HoldLow-battery IndicationAutomatic Power-off9v Battery OperatingUsb InterfaceData Recording And Analysis SoftwareApplications:High-precision Sound-level MetersHigh-quality Equipment Designed To Meet The Measurement Requirements Of Safety Engineers, Health, Industrial Safety Offices And Sound Quality Control In Various Environment, Which Includes Factories, Offices, Traffic, Family And Audio SystemsSpecifications:Measuring Level: 30-130dba, 35-130dbcAccuracy: ±1.5db (94db At 1khz)Digit And Resolution: 5-digit And 0.1dbFrequency Response: 31.5hz-8.5khzMeasuring Level: 30-130, 40-90, 50-100, 60-110 And 80-130Frequency Weighting Characteristic: A&cTime Weighting: Fast/slowSampling Rate: 2 Times/secondMicrophone: 1/2-inch Polarization Capacitance MicrophoneData Store: 4,700 GroupsUsb Interface: Ac/pwm Output: Maximum Reading: Overload Indication: Low-battery Indication: Power Supply: 4 X 1.5v Battery, 6v Dc/100ma AdapterDimensions: 70*36*256mmWeight: 296.8g (including Batteries)It Is Designed According To The Iec Pub651 Type2 & Ansi S1.4 Type2Accuracy Up To +/- 1.5 DbMeasurement Range: 30 - 130dbBoth Ac And Pwm Signal Output Are AvailableFast And Slow Dynamic Characteristic Modes