Bộ kit chuông cửa hình analog gồm: Chuông cửa DS-KB2421-IM và màn hình DS-KH2220
- DS-KB2421-IM
- DS-KH2220
| Video Parameters | ||
|---|---|---|
| Camera: | | | 1/4″ CMOS |
| Resolution: | | | 720 × 576 |
| Video frame rate: | | | PAL: 25 fps |
| Audio Parameters | ||
| Audio Input: | | | Built-in Omnidirectional Microphone |
| Audio Output: | | | Built-in Loudspeaker |
| Audio Quality: | | | Noise Suppression and Echo Cancellation |
| Light Supplement | ||
| Light Supplement Mode: | | | Photosensitive IR Supplement, IR Range: 2 Meters |
| Device Interfaces | ||
| I / O Output: | | | 1 Relay Output |
| Four-wire Interface: | | | 1 Four-Wire Interface (1-ch Video Input, 1-ch Audio Input/Output, 1-ch Power Supply, 1-ch Grounding) |
| General | ||
| Material: | | | Zinc Alloy |
| Power Consumption: | | | Max. 5W |
| Working Temperature: | | | -30°C to 70°C (-22°F to 158°F) |
| Working Humidity: | | | 10% to 90% |
| Dimensions(L × W × H): | | | 145 mm × 49.2 mm × 26.45 mm (5.7″ × 1.9″ × 1.0″) |