Description
Features:
• Calibrates and verifies Sound Level Meter operation
• For use on Sound Level Meters with 0.5″ or 1.0″ microphones
• Total Harmonic Distortion (THD) <2% at 94dB
• Meets IEC standard 60942 1997-11
• Complete with two 9V batteries, carrying case, and screwdriver
Model 407744
• Battery test position with battery status LED indicates if battery is good
• 1kHz sine wave at 94dB is generated to an accuracy of 5% (frequency) and ±0.5dB
| Specifications | 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 | ||
