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![[42AC] Pistonphone, High Pressure, Class 1](/web/image/product.product/17049/image_1920/%5B42AC%5D%20Pistonphone%2C%20High%20Pressure%2C%20Class%201?unique=dd393fb)
[42AC] Pistonphone, High Pressure, Class 1
7,900.00 CADThe GRAS 42AC Pistonphone, high pressure is a precision sound source for calibrating microphones. It is battery operated and produces a constant sound pressure level of 134 dB re. 20µPa (equivalent to 100 Pa) at 250 Hz, or 125.4 dBA re. 20µPa.
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