Door Vibration Sensor

These sensors operate with magnetic fields.

Door vibration sensor.

The front door was issuing 5 6 knock alerts a day. My garage door is double width so with wind blowing i can see how the sensor was picking up movement the tilt sensor may not catch the door being opened just enough for a person to slide underneath so it would have been better to have acceleration as well to detect any movement. Lately i ve been getting false positives. It s a very solid wooden door so stray vibrations don t seem likely and i was able to witness a few while i was right next to the door and was able to confirm that there was no wind thermal expansion etc.

But this versatile device can also tell you when it senses vibrations falls at an odd angle or senses temperature out of the ordinary. The last type of vibration sensor we will discuss is an eddy current or capacitive displacement sensor. Product title wireless door window sensor alarm detector burglar s. Once the door or window is open.

Eddy current sensors are non contact devices that measure the position and or change of position of a conductive component. One end attaches to the door frame while the other end attaches to the door itself. The smartthings multi purpose sensor knows when your doors open or close like any other contact sensor. The sensor has a probe which creates an alternating current at the tip of.

Vibration sensors just had too many false alarms on glass. As long as these two pieces are less than two inches apart the alarm won t sound. Door sensors use a reed switch and magnet as a sensor.