Description
The Extech 407766-NIST 1kHz 94/114dB professional sound calibrator is for 0.5 in. or 1 in. microphones. Calibrates and verifies sound level meter operation. Level position switch to select 94dB or 114dB with power on LED indicator light. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB/114dB to an accuracy of 5% (frequency) and ±0.5dB (94dB)/±1.0dB (114dB). Meets IEC standard 60942 1997-11. With NIST Calibration.
- LED indicator lights up when power is on
- Select 94 dB or 114 dB output
- Calibrates and verifies Sound Level Meter operation
- For use on Sound Level Meters with 0.5″ or 1.0″ microphones
- Durable die-cast, aluminum housing
- NIST Calibration
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