The PUI Audio Microphone parameters of the Omni-directional sensor include a sensitivity of -24 ±3 db. It has a standard operating voltage of 3 VDC and a maximum operating voltage of 10 VDC. The current consumption is a maximum of 0.5 mA, and the impedance is 2.2 kOhm. The signal-to-noise ratio is a minimum of 80 db. Internal capacitor 10 and 33 pF
Operating temperature -20 to 60 °C