Visitor Chime with Watch Dog Alarm

Microwave Detection Sensor that Goes Through Walls


  • a Microwave Sensor that goes through walls* (back of the device 0 to 7 meters, front of the device 0 to 3 meters)
  • sensor activates a bark, chime or alarm

 *Microwave sensor can only penetrate though wood, plastic, glass, cement, etc. It CANNOT penetrate through metal, objects containing metals, electric objects or very thick barriers.