TMEZON 2×7” Monitor Video Doorbell Chime Intercom Security System with Camera
(Note: 1 We suggest testing the doorbell kits with our original cable before installation, and the distance between the units should not be too close while testing,or it will cause noise sound. The power adapter should connect with the indoor unit).
Video Doorbell Intercom System Wired 2x 7inch Monitor Outdoor Camera IR Night
Doorbell can connect the most electronic lock. This video door phone is a 4 wire intercom system, you need to connect 4 wire cable between indoor monitor and outdoor doorbell. You can see who is outside, you can talk to the people outside, open the lock.
