... 2.measuring range 30~130 dBA 3.MAX hold,auto inductive backlight,auto power off 4.best price ... . Our products include laser distance meter,infrared thermometer, anemometer, sound level meter, noise meter, vibration meter, ultrasonic thickness gauge, film/coating ... ,gas detector.2.Specifications ModalTL1351StandardIEC651 TYPE2B. ANSI S1.4 TYPE2measuring range30~130 dBAaccuracy±1.5 dBdigit & resolution4 ...