Single Level Sound Meter Calibrator
GA601 - Castle Group Ltd.
The Castle GA601 produces a calibration tone of 1000Hz at a level of 94dB re 20Pa at the microphone.
This product is no longer listed
GA601 - Castle Group Ltd.
The Castle GA601 produces a calibration tone of 1000Hz at a level of 94dB re 20Pa at the microphone.