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The Extech 407744 Calibrates and verifies Sound Level Meter operation at 94dB with a +/-0.8dB Acuracy. Fits 0.5 and 1
Range | Accuracy | |
Frequency | 1000 Hz | ±5% |
Sound Pressure Level | 94 dB (407744); 94dB/114dB (407766) | ±0.5dB (94dB), ±1dB (114dB) |
Distortion | <2% Total Harmonic Distortion (THD) | |
Operating Temperature | 32 to 122°F (0 to 50°C) | |
Power Supply | Two Heavy duty, alkaline 9V Battery | |
Power consumption | Approx. 10mA DC | |
Dimensions | 2.2" diameter x 5.6" long (50 x 127mm) | |
Weight | 0.75 lbs. (340g) |
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