Aritech 3005-N recessed roller plunger
Aritech 3005-N recessed roller plunger with wire leads save installation time while providing reliable magnetic contact security. The contact switch is activated when the door opens, releasing the tension on the wheel plunger. The roller plunger wheel is designed to operate with a smaller surface area in contact with the door. This reduces the likelihood that dirt and other debris will clog the mechanism. The specially designed ABS plastic housing protects the roller wheel from pressure exerted by swelling wood that could cause ball plungers to jam in place. It is used to protect a variety of doors and windows. Can also be used to protect high-value objects on display, such as antiques, rare books or works of art, by placing the object on the recessed contact.