The Extech Sound Calibrator calibrates and verifies sound level meter operation.
Features
- For use on Sound Level Meters with 0.5″ or 1.0″ microphones
- Total Harmonic Distortion (THD)
- Durable die-cast, aluminum housing
Extech Sound Calibrators
Description
The Extech Sound Calibrator calibrates and verifies sound level meter operation for meters with 0.5″ or 1.0″ microphones. Model 407744 features a 1kHz sine wave at 94kb that is generated to an accuracy of 5% (frequency) and ±0.8dB. Model 407766 features a level position to select 94dB or 114dB and an LED indicator light when power is on.
- 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 122F (0 to 50C)
- 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)
