Keterangan
EXTECH 94 114dB Sound Calibrator 407766
Mfg : EXTECH
Features:
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
Specifications Range Accurancy
Frequency 1000 Hz ± 5%
Sound Pressure Level 94 dB ( 407744) ; 94dB/ 114dB( 407766) ± 0.5dB( 94dB) , ± 1dB( 114dB)
Distortion
SMS Indotrade