Complete your driveway bell kit with this low-voltage Red Bell. This driveway signal bell can be added to our wireless chime kits when the chime alone is just not loud enough. The bell is an easy add-on to the Milton driveway alarm system, and operates of off 12V DC power that it receives from a wired connection to the chime. The Milton bell is the best driveway alarm for any residential property, residential area, or business in the industrial sector.