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
NIST Certificate Included.