ITEM NAME:Smoke detector fire alarm detector magnet independent-smoke alarm sensor magnet- Attention! Please take care to attach the fastener onto a stable,dry,dust-free and not greasy surface, since the metal part can not moved or removed after attaching it. INSTALLATION NOTE 1. Remove the protective film and stick the metal part onto the ceiling (image 1+2) 2. Press the part firmly for about 10 seconds (image 3) SMOEK ALARM NOTE Attach the smoke alarm at the intended position as described in the instructions. The smoke alarm should have a minimum diameter of 80mm. 1. Remove the protective film and attach the magnet part onto the bottom of the smoke alarm. 2. Press the magnet disc firmly for about 10 seconds onto the smoke alarm (image 4) 3. Now you just simply hold the smoke alarm with the attached magnet part to the metal part on the ceiling in order to attach the smoke alarm to the ceiling (image 5) 4. Push the smoke alarm sideways from the metal part if you want remive it. TECHNICAL INFORMATION 1. 70mm 2. Holding load 1000g 3. N.W.: 36g 4. Main material: Steel plate with Zinc-plating, form OUR ADVANTAGE 1. Save time and much easier instead of using screws, which is the normal way. 2. You can also stick other products easily with weight less than 1000g.Remove the protective film and attach the magnet part onto the bottom of the smoke alarm. Press the magnet disc firmly for about 10 seconds onto the smoke alarm (image 4). Attach the smoke alarm at the intended position as described in the instructions.