TES-1357 Sound Level Meter

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深圳億鑫電子有限公司是從事環境、電子、電力檢測儀器的專業公司代理經銷中國臺灣泰仕(TES)、衡欣(AZ) 、群特(CENTER),德國美翠(METREL) 美國雷泰(Raytek)，日本共立(KYORITSU)，韓國興倉（Protek）香港創意，蘭泰等品牌儀器儀表公司

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specifications

applicable standards	iec pub 651 type2 , ansi s1.4 type 2
accuracy	+/- 1.5db (ref 94db @1khz)
digital display	4 digital lcd
measurement level a weighting	30db to 130db
measurement level c weighting	35db ~ 130db
level range	30-80db, 50-100db, 60-110db, 80-130db
measurement frequency range	31.5 hz to 8khz
frequency weight	a and c
time weight	fast and slow
microphone	1/2 inch electret condenser microphone
digital display	4 digit lcd , 0.1db resolution, up-dated every 0.5s
quasi-analog bar indicator	1-db steps, 50db display range, up-dated every 100ms
display warning function overrange indicator underrange indicator	displayed at the upper limit displayed at the lower limit
analong ac / dc output	2vrms ( at full scale ) , 10mvdc / db
power supply	four 1.5v lr-6/aa size alkaline cell, ac adapter
battery life	about 20 hours
operating temperature , humidity	5 ~ 40^oc , 10 ~ 90% rh
dimensions	265 (l)⊙72(w)⊙21(h)mm, ( 10.4" l⊙2.8" w⊙0.8" h )
weight	approx. 310g
accessories	instruction manual , battery , carrying case , adjustment screwdriver , wind shield, 3.5f plug