1.IEC,ANSI standard 2.measuring range 30~130 dBA 3.MAX hold,auto inductive backlight,auto power off 4.best price 1. IntroductionWe are a developing,design,manufacturing and sales integrated company. Our products include laser distance meter,infrared thermometer, anemometer, sound level meter, noise meter, vibration meter, ultrasonic thickness gauge, film/coating thickness gauge, digital ...