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DAHUA PFM 140 πολυκατευθυντικό μικρόφωνο CCTV
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| DAHUA PFM 140 πολυκατευθυντικό μικρόφωνο CCTV Model DH PFM 140 |
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| Porperties | |
| Scope | 5-40m2 |
| Sensitivity | -40dB(-45~-20dB adjustable) |
| Frequency response | 20Hz~20kHz |
| Direction characteristic | Omni-directional |
| SNR | 70dB(1m 40 dB sound source SPL) |
| Dynamic range | 104dB(1kHz at max. dB SPL) |
| Max. sustainable sound pressure | 120dB SPL(1kHz, THD 1%) |
| Output impedance | 600Ω(non-equilibrium) |
| Output signal amplitude | 2.5Vpp/-25dB |
| Working voltage | 16DC 12V(9~15V) |
| Working current | 60mA(50~100mA) |
| Working temperature | -30℃～+70℃ |
| Color | White |
| Outer shell | PC |
| Dimension | 63mmx30mmx22mm |
| Weight | 34g |
| Carried standard | CE/FCC |
Weight: 0.2 kg