apparentshow

Double row display,Maximum display1999

Display updates

per second1order

Compliant with standards

IEC 61672-1：2002 Class2

JJG-188-2002 Class 2

CNS NO.7129

IEC60651:1979 TYPE 2

IEC60804:2000 TYPE 2

ANSI S1.4:1983 Type1

microphone

1/2Inch polarized condenser microphone

measuring items

Lxyp ,Lxmax ,Lxmin, Lxeq,LAE,Lcpeak,RT60

measuring range

30dBto130dB (A)

35dBto130dB (C)

40dBto130dB (Z)

dynamic range

1 00 dB

Integral time setting

hand movement, tensecond, onedivide, fivedivide, tendivide, thirtydivide, onehour, eighthour, sixteenhour, twenty-fourhour

Internal memory capacity

24C512 × 4Maximum number of records>37000

Micro SDblock

Micro SDMaximum support for cards4GB；37000Pen data memory space approximately300KB

Maximum peak valueCWeighted measurement range

70~133 dB

time weight

Quickly（Fast）,Slow speed（Slow）,Pulse sound(IMPULSE) ,Peak value（PEAK）Time weighted measurement

frequency weighting

A/C/Z

Frequency range

31.5Hz~8KHz(ST-107)

20Hz~8KHz(ST-107S)

20Hz~16KHz(ST-109)

DCoutput

2Vdc/130dB

ACoutput

2Vrms/130dB

Start Time

＜10 Second

electricitysource

30 hour(AA,3Alkaline battery4The grain)

ACchangeDCtransformer

INPUT VOLTAGEAC 100V~240V ;Output voltageDC 6V~9V/500mA

chicun

285(long) x 90(wide) x 39(tall) mm