This door stoppers for wall uses high quality thickened adhesive material, with excellent viscosity, even in the rough wall can be firmly pasted without falling off, no residue after installation, keep the surface clean.
When the door stopper alarm is set to "ON," it activates loudly at 120dB if someone attempts to force entry. This high volume alarm serves to deter the intruder and alert you to stay vigilant.
The installation of this wall protector does not require the use of drilling, tape or other tools, just remove the protective film on the back, and gently press it to fix on any flat surface, easy to operate, and quickly solve the door impact problem.
There are high-medium-low levels with an adjustable sensitivity switch on the side, and the pressure sensitivity can be adjusted according to the gap between your door and floor and the type of flooring.