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| Power course: | AC 110V~240V
| Screen: | 3.5" TFT LCD or 4" flat CRT
| Effective resolution: | 480(H)*234(V) or ≥420 lines
| Operation temperature: | -15°C~+50°C
| Extemal dlmenslon:Monitor:259(L)*211(W)*77(H)mm Camera: | 233(L)*123(W)*55(H)mm
| Installation: | surface-mount
| Match way: | one to one,compatible for apartment
| Connection: | 4 wires |
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