AS804 Digital Sound Level Meter 30-130db Decibel Meter Noise Monitoring Tester Smart Sensor Noise DB Detector AnalyzerDescription:SMART SENSOR AS804 Sound level meters measure sound pressure level and are commonly used in noise pollution studies for the quantification of almost any noise, but especially for industrial, environmental and aircraft noise, safety Engineers,Health,Industrial Safety offices and Sound Quality control in various environme.Features:100% brand new and high quality.Mini digital sound level meter with stable and reliable performance.Wide measurement range from 30dB to 130dBA.Data hold function, maximum and minimum value measurement.LCD display with backlight, convenient to use at night.Low battery indication, automatic & manual power off function.Compact and light, convenient to hold and carry.Equipped with sponge ball for sensor protection.Specification:Color: whiteMaterial: plasticDisplay: 5 digits LCD, Max display 99999Measuring range: 30~130dBAResolution: 0.1dBAccuracy: 1.5dB (under reference conditions)Frequency range: 31.5Hz to 8.5HzFrequency weighting: a weightedOver range: LCD show overTime weighting: fastSampling rate: 2 times/sOperating temperature: 0~40 (10%~80%RH)Storage temperature: -10~60 (10%~70%RH)Power supply: 3 * 1.5V AAA batteries (not included)Size: 15cm/5.91"4.8cm/1.89"2.5cm/0.98"Note:Transition: 1cm=10mm=0.39inchPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank youPackage Includes:1 x Sound Level Meter1 x User Manual