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4 407744 & 407766-EN v5.3 1/14
Specifications
Output signals 407744: 94dB
407766: 94dB and 114dB
Output signal accuracy 407744: ± 0.5dB;
407766: ± 0.5dB (94dB), ±1.0dB (114dB)
Output signal frequency 1 KHz sine wave
Accuracy of output signal frequency ± 5%
Compatible microphones size 0.5” microphones
Total Harmonic Distortion (THD) <2%@94dB (407744 and 407766)
<5%@114dB (407766)
Operating temperature 32 to 122
o
F (0 to 50
o
C)
Power supply Two (2) 9V batteries
Power consumption Approx. 10mA DC
Battery check Status LED
Dimensions 2.2” diameter x 5.6” length (50 x 127mm)
Weight 0.75 lbs. (340g)
Standards meets IEC 60942 1997-11 class 2
Standards Meets IEC 60942 1997-11 class 2