DefenDoor is the universal home-security system that connects to your smartphone to make protecting your home or office easier than ever. Imagine having the convenience of a butler, organization of a secretary, and protection of a security guard, rolled into one easy-to-install monitoring system. 

It consists of one DefenDoor that acts as a camera, doorbell, and alarm system. It can be used individually, inside or outside, or with Glate’s vibration and motion sensors. Each DefenDoor device sends alerts to your smartphone within seconds of recognition, whether that be photos, voice messages, or live video feed.

 kickstarter.com