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| Door Station (DS-KB2411-IM) | |
| Video Parameters | |
| Camera | 1/4-inch 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 | |
| Four-wire interface | 1 Four-Wire Interface (1-ch Video Input, 1-ch Audio Input/Output, 1-ch Power Supply, 1-ch Grounding) |
| IO output | 1 Relay Output |
| General | |
| Material | Aluminum Alloy |
| Power consumption | Max. 3W |
| Working temperature | -30° C to +60° C (-22° F to 140° F) |
| Working humidity | 10% to 90% |
| Dimension (L x W x H) | 128 mm × 42 mm × 24.8 mm (5.0′ × 1.7′ × 0.9′) |
| Indoor Station (DS-KH2220-S) | |
| Display parameters | |
| Display screen | 7-Inch Colorful TFT LCD |
| Display resolution | 800 × 480 |
| Operation method | Physical Button |
| Audio parameters | |
| Audio input | Built-in Omnidirectional Microphone |
| Audio output | Built-in Loudspeaker |
| Audio quality | Noise Suppression and Echo Cancellation |
| Device interfaces | |
| Four-wire interface | 4 Four-Wire Interfaces 1-ch Video Input, 1-ch Audio Input/Output, 1-ch Power Supply, 1-ch Grounding |
| General | |
| Power supply | 12 VDC |
| Power consumption | |
| Working temperature | -10° C to + 55° C (14° F to 131° F) |
| Working humidity | 10% to 90% |
| Dimension (L x W x H) | 195.8 mm × 132.8 mm × 18.39 mm (7.7′ × 5.2′ ×0.7′) |
