EXTECH 407780 Sound Level Meter Integrating

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SPECIFICATIONS
Country of Origin-
Dimension10.4x2.8x0.8" (265x72x21mm)
Weight10.9oz (310g)
Applicable Standards IIEC 651 And 804 Type 2, ANSI S1.4 Type 2
Accuracy±1.5dB (ref 94dB@1KHz)
Resolution0.1dB
Digital Display4 digital LCD
Measurement ParametersSPL, Leq, SEL, MaxL, MinL
Measurement Range30dB to 130dB
Linearity Range100dB
Measurement Frequency Range31.5Hz to 8KHz
Frequency WeightingA and C
ResponseImpulse, Fast and Slow
Microphone1/2 " Electret condenser microphone
Sampling timeupdated every 0.5s
Bargraph4dB steps, 100dB range, 100ms update
Display Warning Function
Overrange Indicator
Underrange Indicator

Displayed at the upper limit
Displayed at the lower limit
Analog AC/DC Output2Vrms (at full scale), 10mVDC/dB
Power SupplyFour 1.5V AA batteries, Optional AC adapter
Battery LifeApproximately 20 hours