Very convenient! 72

When rents are preferred to avoid having to drill holes in ceilings to install smoke detectors. This product is precisely just that. Very practical, it adheres extremely well to the ceiling and to the detector, even if it is a little heavy. For example, I own a Nest Protect, a smoke detector / CO2 "intelligent" (WiFi) which uses no less than 6 AA batteries. The object therefore weighs its weight compared with traditional detectors but no problem to paste the ceiling with this magnetic kit. In addition, when to change the batteries of a detector, it is sometimes difficult to demonstrate the machine screwed to the ceiling. Here, with the magnet, no worries. I specify that the kit does not match the photos illustrations. There are not two small magnets glued to a circular plate. The magnet makes the entire surface of one of the disks while the other metal and 2mm thick, can be stuck to the ceiling.