mining explosion proof noise detector

YSD130 Mining Noise Detector Main characteristics Adopting microprocessor technology, LCD display, it can detect the sound level real timely. It has the function of date, time, overload, battery under voltage display and data storage. Technical parameters Measurement range (30~130)db Intrinsic error ±1.5db Resolution ratio 0.1db Sampling rate FAST/125ms SLOW/1s Battery 4×LR06(Zn-Mn)/AA Explosion-proof type Exib I Mb Dimensions 272×70×39mm Weight 0.39kg Product certification