Hikvision DS-KB2421-IM Analog Four Wire Video Door Station
The Hikvision DS-KB2421-IM Analog Four-Wire Video Door Station is an advanced doorbell and intercom system designed to enhance security and communication at entry points.
Features
- High-Definition Video: Equipped with a high-resolution camera, the DS-KB2421-IM captures clear video footage of visitors, ensuring accurate identification and monitoring.
- Two-Way Audio: Built-in microphone and speaker allow for seamless two-way audio communication between visitors and occupants, enabling convenient interaction without the need to open the door.
- Wide-Angle Lens: Features a wide-angle lens to provide a broad field of view, ensuring comprehensive coverage of the entry area.
- Night Vision: Integrated infrared (IR) illumination enables clear visibility in low-light or nighttime conditions, ensuring continuous surveillance around the clock.
- Weatherproof Design: Designed to withstand various weather conditions, the DS-KB2421-IM is weatherproof, ensuring reliable performance even in outdoor environments.
- Tamper Detection: Includes tamper detection features to alert users to any attempts at unauthorized access or interference with the device.
- Integration with Access Control Systems: Compatible with access control systems, enabling seamless integration with electronic locks, gates, and other access control devices for enhanced security.
- Visitor Recording: Optionally records video and audio of visitor interactions for future reference or review, enhancing security and accountability.
- Customizable Settings: Users can customize settings such as volume, camera parameters, and call button functions to meet specific preferences and requirements.
Specification
| Model | DS-KB2421-IM | |
| 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 | |
| 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) |
| I/O output | 1 Relay Output | |
|
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″) |




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