DS-KB2421 - Intercom Hikvision - Free user manual and instructions
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| Product Type | Video Door Intercom |
| Brand | Hikvision |
| Model | DS-KB2421 |
| Dimensions (H x W x D) | 130 mm x 96 mm x 26 mm |
| Weight | 0.3 kg |
| Power Supply | 12 V DC or PoE (802.3af) |
| Power Consumption | ≤ 7.5 W |
| Camera Resolution | 2 MP (1920 × 1080) |
| Viewing Angle | Horizontal: 70°, Vertical: 50° |
| Night Vision | IR LED up to 5 m |
| Audio | Two-way, built-in microphone and speaker |
| Door Release Function | Yes, via relay output |
| Motion Detection | Yes |
| Tamper Alarm | Yes |
| Weatherproof Rating | IP65 |
| Mounting Type | Wall-mounted (flush or surface) |
| Operating Temperature | -30°C to 60°C |
| Network Interface | 1 x RJ45 10/100Mbps |
| Supported Protocols | TCP/IP, RTSP, SIP |
| Maintenance | Clean with dry soft cloth; avoid harsh chemicals |
| Repairability | Non-user-serviceable; contact Hikvision support for spare parts |
| Included Accessories | Mounting bracket, screws, quick start guide |
Frequently Asked Questions - DS-KB2421 Hikvision
How do I reset the Hikvision DS-KB2421 to factory settings?
Press and hold the reset button (located on the side) for 10 seconds using a paperclip while the device is powered on.
Can I connect the DS-KB2421 to a Hikvision NVR?
Yes, it supports ONVIF and Hikvision protocols, allowing integration with Hikvision NVRs for recording and remote monitoring.
What mobile app is used with this intercom?
Use the Hik-Connect app for remote viewing, two-way talk, and door release from your smartphone.
Does the DS-KB2421 support PoE?
Yes, it supports Power over Ethernet (IEEE 802.3af), simplifying installation by carrying power and data on one cable.
How do I adjust the camera viewing angle?
The camera has a fixed lens. Ensure the mounting bracket is properly aligned during installation for optimal viewing.
What is the night vision range?
The built-in IR LEDs provide clear black-and-white video up to 5 meters in complete darkness.
Can I use the intercom without a network?
No, the DS-KB2421 requires an Ethernet connection to function. It does not support standalone operation without network.
How do I trigger the door release?
From the Hik-Connect app, press the unlock button. Alternatively, connect a door strike to the relay output terminals.
Is the DS-KB2421 weatherproof?
Yes, it has an IP65 rating, making it suitable for outdoor use, rain or shine.
What is the warranty period?
Hikvision typically offers a 2-year limited warranty. Contact your dealer for specific terms.
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