騒音計、Lifenergy ミニ デジタル サウンド レベル メーター ポータブル Noister テスター範囲 30-130 デシベル (A)/35 130 デシベル (C) 液晶ディスプレイ

商品説明

This digital noise with 1 equivalent weighted sound pressure level A; Maximum value holding function to lock up the maximum reading; Equipped with sponge ball;A frequency weighting for general sound level measurements; Large LCD screen with digits reading;Fast and Slow dynamic characteristic modes; Fast rate to pick up the current reading; Slow rate to pick up the reading of average within 1 second;Auto power off design for energy saving; Low battery indication;Portable, easy to use and handy instrument for sound quality control in factory, office, home, school and construction site.