EXTECH CALIBRATOR SOUND اكستيك جهاز معايرة الصوت

1kHz Professional Calibrator for 0.5" or 1.0" Microphones
This 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. Comes complete with two 9V batteries, carrying case and screwdriver.

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 and ±0.5dB (94dB)/±1.0dB (114dB)