782121-01

782121-01 is a GRAS 40PH-10 CCP free-field array microphone. It is low-cost microphone for general purpose measurements in arrays and matrices. Typically used for measuring and locating noise sources, and here the phase match is important to get good accuracy in the measurements. 40PH-10 has a wide useful frequency range reaching up to 20kHz and a large dynamic range topping at 135dB, the peak value before visible clipping. It has an integrated CCP preamplifier and is delivered with a built-in TEDS chip which enables it to be programmed as a complete unit. The GRAS 40PH-10 requires a constant current power supply, e.g. the GRAS 12AL CCP Supply, or any other CCP compatible power supply.

• Sensitivity: 50mV/Pa
• Front microphone venting
• Output impedance is less than 50 ohm
• Operation temperature range from -10 to 50°C/-50 to 122°F
• SMB connector