The AN-9001 is an electret condenser microphone designed for ambient noise detection. It is used in conjunction with the AN-001T Ambient Noise Sensor Input module in the 9000 Series system. It can be mounted in a 1-gang electrical box in the ceiling or wall. Type Electret condenser microphone Phantom Power 14 - 26 V DC Current Consumption 7 mA (at 24 V DC) Directivity Omnidirectional (hemispherical) Impedance 200 Ω Rated Sensitivity -5 dB (1 kHz, 0 dB = 1 V/Pa) Frequency Response 100 - 10,000 Hz Output Terminal Removable terminal block (3 pins) Operating Temperature -10℃ to +40℃ Finish Panel: ABS resin, white Frame, Case: Surface-treated steel plate Dimensions φ130 × 37 (D) mm Weight 170 g Accessory Removable terminal plug (3 pins) …1, Box mounting screw (No.6-32UNC × 30) …2, Box mounting screw (M4 × 30) …2 Option 9000 series plug-in module: AN-001T Note: Since no electrical box is supplied with the unit, prepare it separately.