มิเตอร์วัดเสียงPROS KIT MT-4008

มิเตอร์วัดเสียง MT-4008
MAX.& MIN.FUNCTION.OVER & UNDERRANGE INDICATION.4-
DIGIT LCDDISPLAY WITH BAR GRAPH.FREQUENCY WEIGHTING.
CHARACTERISTICFOR2 TIMES PER SECOND.AC SIGNAL
OUTPUT.LOW BATTERY INDICATION.IEC 651 TYPE 2 & ANIS S1.
MEASURING RANGE LO/MED/HI:32DB-80DB/50DB-100DB/
80-130DB.ACCURACY : 1.5 DB (AT REFERENCE RANGE)
REFERENCE SOUND LEVEL & FREQUENCY : 94 DB, 1 KHZ.
RESOLUTION : 0.1 DB.
DETECTOR-INDICATOR CHARACTERISTIC : FAST : 125MS, SLOW : 1 S.
ANALOGE SIGNAL OUTPUT : AC 1 VRMS FOR EACH RANGE.
DIMEMSION : 235 x 58.4 x 34 MM. WEIGHT(PROX) : 220 G.
POWER : 6F22 (9V) x 1. WEIGHT : 300 G.