- outdoor hd camera , indoor color screen video intercom
- see, hear and speak with the visitor who stands at your door.
- audio/video doorbell answering kit,collocation telephone set panel,,electric-lock control.
- monitoring and unlock,night version, two-way intercom mute door intercom
- night version,capture images in low-illumination environment
- waterproofing and oxidation-proof case
- easy to use,
