Doorbell: Intercom signal interference,The doorbell intercom is transmitted wirelessly, not through shielded wires, so it will be interfered by electromagnetic signals. The closer the doorbell and display host are, the greater the interference will be.
eBay
Support visual intercom, unlock, IR night view and rainproof. Connection Cable Length: 5M. 1 Indoor Monitor. Monitor Specifications Monitor Size: 24.1 15.2 2.6cm / 9.49 5.98 1.02in. Monitor Weight: 418g / 14.77oz.
eBay
Hikvision NVR 16ch 12MP 4K Poe AcuSense Network Video Recorder DS-7616NXI-K2 UK. Hikvision NVR 16ch 12MP 4K No Poe AcuSense Network Video Recorder DS-7616NXI-K2. Hikvision DS-KV9503-WBE1 Wifi Villa Door Station Facial Recognition 2-Way Audio.
eBay
HOMSECUR Video Door Intercom System. Experience outstanding sense of comfort and security with this newly released HOMSECUR® HDK Intercom System. Imbedded IR sensors provide clear image in low-light conditions.
eBay
The intercom function is useful for large properties as the occupiers can answer the door from multiple points within the property as well as communicate with each other. For use with Videx K4K, VK8K AND VR4KV video kits.
eBay
Individual monitors without interfering with each other. Slim design, touch-key operation, hand-free 7" TFT display monitor. Outdoor doorbell with waterproof cover and built-in infrared sensor. IP65 Dustproof and Waterproof:The doorbell made of aluminum alloy material has rain outside the doorbell.
eBay
Seamless Language Switching: Our visual doorbell supports 12 languages, ensuring easy use for everyone. - Enhanced Security: Unlike WiFi-dependent models, our doorbell uses a no-WiFi design for more secure information handling.
eBay
Monitor, intercom, unlock, hands-free. 1 Indoor Monitor. 2 4-core Wire. 1 3-core Wire. Waterproof level: IP55. 2 2-core Wire.
eBay