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• Digital Sound Decibel Meter Noise Meter Sound Level Meter Tester dB meter Audio Detector decibelimeter measuring instruments Feature: *This unit turned into designed consistent with following standards: ----A International electrician committee standard: IEC PUB 651 TYPE2 ----B US nationwide standard: ANSI S1 TYPE2 *With modern, compact, portable design *Easy to use *Frequency weighting characteristic: A *Equipped with sponge ball to filter-out unwanted indicators *Max studying preserve *Auto power off *Auto backlight exhibit *Low battery indication *Powered by way of 3AAA Batteries (not included) Technical Parameter: *Measuring range: 30dBA~130dBA *Accuracy: ±1 dB *Frequency range: 31~8 *Frequency weighting: A *Digital Display: 4digits *Resolution: 0 *Sample rate: 2 times/second *Microphone: half inch electret condenser microphone *Power supply: 3AAA Batteries(Not included) *Operating condition: 0~40 10~80%RH *Storage condition: -10~60 10~70%RH *Weight: 144g *Dimension: 57*26*149mm Package Includes: 1pc Digital Sound Meter 1pc User Manual 1pc Sponge Ball

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