1 outdoor unit support 12 monitor ，monitor connect to doorbell by 4 cables. alloy doorbell support IP65 waterproof night vision. Works with electronic lock. Connection: 4 cored wire (Up to 2/6 monitors).
eBay
4 Button video doorbell compatible with Commax Analogue 4-wire intercom/video doorbell systems.
eBay
Goliath IP Türsprechanlage Außenstation Kompakt. Erweiterungen der Außenstation. 32 GB Interne Speicher (ca. 40.000 Bilder). Die Anbindung an Ihrem Netzwerk oder Internet ist nicht zwingend erforderlich, es kann auch offline genutzt werden.
eBay
Motorcycle Bluetooth intercom Communication System. lt can handle all kinds of outdoor weather. Equipped with a 5.1 Smart Bluetooth chip,it has goodstability and allows you to stay in touch with your partner when you riding.
eBay
The Comelit videocitofono Bravo 5701 is a sleek and modern audio intercom system designed for internal use. Made in Italy by the reputable brand Comelit, this video doorbell features a 4-inch screen that offers both black and white and monocromatic colour options. With a wired protocol for domotica, this system is perfect for enhancing home security and providing a convenient way to communicate with visitors at the door. Its white design adds a touch of elegance to any home's entryway. used - see photos no technical assistance offered with this sale please ask if more details or photos needed no returns - pls see description & contact me if needed before payment/purchase
eBay
Ubiquiti Intercom Viewer (UA-Intercom-Viewer), new in sealed box. Condition is New. Shipped with USPS Ground Advantage.
eBay
HOMSECUR Video Door Intercom System. Audio interaction is available among indoor monitors just to free your feet when you have multiple monitors installed. Audio Interactive Monitors. IR Distance 2~3m.
eBay
Außenstation in Aluminium, Innenstation in Temperglas Weiß. Die Innenstation hat die Form eines modernen LCD-Flachbildschirms. 7“ Farb-TFT-Display. Sie können die Gegensprechanlage mit bis zu 3 zusätzlichen Monitoren erweitern.
eBay