Wireless

Communicates via radio frequencies without the use of cables. Offers flexibility in placement and is often portable.

Refers to how the button returns to its original state. Resetting with a special key prevents unauthorized cancellation.

Volumetric

The button automatically returns to its original position as soon as you stop pressing it.

Portable

Small in size, designed to be carried on your person so you can activate the alarm from anywhere in the area.   

The maximum communication distance (in meters) between the wireless button and the control panel. This is always calculated in an open area without obstacles.