Expandable Doorbell System: Expand your AVANTEK doorbell system with a maximum of 2 transmitters and multiple receivers; All of the following AVANTEK doorbells with plug-in receivers can be paired with each other: CB-11/CW-11/CB-12/CW-12/CB-21/CW-21/D-3B/D-3W/D-3G/D-3F/D-3C/DB-21/DB-11/DW-21 (For orders purchased before 2021, it is best to contact us to inquire whether they can be paired.) Effortless Installation: Simply place the transmitter on your wall with the double-sided adhesive tape or the screws and anchors included in the package IP55 Waterproof: High waterproof rating of IP55 and functional between -4°F (-20°C) to 140°F (60°C) to operate in even the harshest weather conditions Low Power Consumption: This transmitter uses a 230 mAh CR2032 lithium battery, which has an ultra-long 3-year lifespan, and frees you from the hassle of frequently buying batteries 1300 ft/400 m Wireless Range: Does not interfere with other equipment in your home or those of your neighbors; never fails to alert you when someone shows up at the door even if you are a few rooms away or on another floor ›See more product details
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Khalid Z.
Great experience from order to delivery. Highly recommended!
1 week ago
Sneha T.
Received my product in pristine condition. Great service overall.
