["Large Screen Display Noise dB Meter Wall Hanging Sound Level Meter Monitor USB data transmission audio meter 32x17cm\n\nMultifunction:\nUSB Connect to computer\nLarge screen display\nUpper limit setting\nOver limit alarm setting\nExternal alarm output\nAlarm for time setting\nMultiple fixation methods\nAccurate measurement\nExternal power supply\n\nParameters:\nMeasurement range:30dB~130dB\nAccuracy:±1.5dB\nMeasurement range:31.5Hz~8.5KHz\nFrequency weighting:A Weight\nResponse time:Fast,about 2times/seconds\nSensor tvpe: 6mm capacitive microphone sensor\nDigital display: 3digits\nResolving power: 0.1dB(<100dB) ;.1dB(>100dB)\nAlarm mode: sound + display\nAlarm output: 5v high level\nRefresh rate Storage function: 2 times /seconds\nComputer Communication:YES\nPower supply: 5V 1A MicroUSB interface\nWorking temperature and humidity: 0-40C , 10-80%RH\nStorage temperature and humidity: 0-40C , 10-80%RH\nOver range display:op digit shows \"Hi\" or \"Lo\"\nProduct power supply: AC input, output 5V 1A adapter\nProduct size: 323 x 173 x 40mm (12.71 x 6.for 81 x 1.57in) \nProduct weight:about 980g\n\nPackage included:\n1x GIFT BOX \n1x HOST \n1x ENGL/SH INSTRUCTION\n1x POWER USB \n2x HANG/NG HOOK \n2x SCREW"]