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G.R.A.S. 40BI 1/4" Ext. Polarized Intensity Microphone Set - G.R.A.S. Sound & Vibration - PDF Catalogs | Technical Documentation | Brochure
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Consumer Electronics Test and Development - GRAS Sound & Vibration launches new intelligent acoustic sensor system
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GRAS Sound & Vibration Launches SysCheck2 Intelligent Acoustic Sensor System with Built-in Self-verification | audioXpress
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