Even if you forget.
Simplisafe alarm on garage door.
When the magnet is within 2 inches of the grooves on the sensor it knows the door or window is closed.
The host explains that simplisafe s sensors communicate with the base on the 433 92mhz frequency which is very popular among other consumer electronics like garage door openers baby monitors.
Doorbell pro alerts you when someone s at the door even if they don t ring the bell.
When the door swings open it will trigger the sensor.
The majority of break ins happen through an unlocked entry.
In the diagram below the entry sensor has been installed on the doorframe and the magnet on the door.
When more than 2 inches away the sensor signals that it is open.
It locks your door the minute you arm your system or automatically on a timer.