Description
53-407766-NIST
53-407766-NIST
- Calibrates and verifies the correct operation of sound level meters
- LED indicator shows that the battery level is OK for a correct signal
- 2 level settings to select 94dB or 114dB
- For use with sound level meters equipped with 0.5″ or 1.0″ microphones
- Durable die-cast aluminum housing
- 1 kHz sine wave at 94dB/114dB is generated with an accuracy of 5% (frequency) and ±0.8dB

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