Alat Ukur Ph,air,agen Extech 407750 Sound Level Meter

The Extech 407750 Digital Sound Level Meter offers a big backlit display with an analog bargraph, PC interface and background sound absorber for superb accuracy. What differentiates this meter from others? The background noise absorber is optimal for noise measurements with high ambient noise levels, and the user can capture data to a PC using the optional Windows compatible 407752 software in the accessory tab. Scroll down to see more Extech 407750 sound level meter features and specifications.

Specification:
Digital Display: 3-1/ 2 digit ( 1900 count) Autorange LCD
Bargraph Display: 50dB display range ( 1dB resolution)
Measurement Range: 30 to 130dB ( 35 to 130dB for " C " weighting)
Resolution: 0.1dB
Accuracy: ± 1.5dB@ 94dB for a 1KHz sine wave
Microphone: Electret Condensor .24 " ( 6mm diam.) type
Frequency Weighting: " A " and " C " type
Time Response: Slow/ Fast
Sampling Time: updates every 0.5 seconds
Measurement Frequency Range: 31.5Hz to 8KHz
Analog Output: AC: 0.70Vrms ( full scale) ; DC: 10mVDC/ dB
Applicable Standards: IEC 651 Type 2, ANSI S1.4 Type 2
Power Supply: 9V battery, optional AC adapter
Dimensions: 10 x 3.1 x 1.5 " ( 256 x 80 x 38mm)
Weight: 8.5oz. ( 240g)