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> 2006
> Extech 407766 sound calibrator 94/114DB
Extech 407766 sound calibrator 94/114DB
Extech 407766 Sound Calibrator 94/114dB 1kHz Professional Calibrator for 0.5" or 1.0" Microphones
* Calibrates and verifies Sound Level Meter operation
* LED indicator lights up when power is on
* Level position to select 94dB or 114dB
* For use on Sound Level Meters with 0.5" or 1.0" microphones
* Durable die-cast aluminum housing
* 1kHz sine wave at 94dB/114dB is generated to an accuracy of 5% (frequency) and ±0.8dB
