Add safety and security to your home with Ideal Security's door motion sensor alarm and sliding patio door security bar bundle. The door alarm alerts you to any incoming visitors, intruders, or pets. When triggered, it instantly emits a loud 90 dB alarm. Ideal Security also brings security to your see-through patio doors. Breaking through the tempered glass of a patio door is very noisy and not easy, but forcing a door open can be a burglars easiest option. Our adjustable bar can be mounted anywhere in the door profile. Simply fasten the saddles to your door frame and insert the bar. Because the bar can be mounted at variable heights, you won't have to bend down every time you want to open the door and can install it out of the reach of children. The inside bar slides into the outside bar when adjusting, and easy adjustability means your sliding patio door can be partially opened for ventilation and still be secured.