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ขาย Extech 407730
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±2dB accuracy with 0.1dB resolution
A+C weighting
AC analog output
Record Max/Min values over time
Utilizes 0.5"(12.7mm) electret condenser microphone
Display Counts: 2000 count LCD
Range: 40 to 130dB
Basic Accuracy: +/-2dB
Condenser Microphone: 0.5" (12.7mm)
Analog Output: AC
Dimensions: 9 x 2.2 x 1.7"(230 x 57 x 44mm)
Weight: 5.6 oz (160g)