The P-DISC NO1 can be easily attached to the magnets using the built-in metal parts. If you want to change settings or replace the battery, you can simply detach the device. The magnets will remain on the windshield.
Removing the magnets
If you want to remove the magnets, we recommend carefully wedging a thin, stiff, blunt tool between the windshield glass and the adhesive magnets until the magnet lifts enough for you to grab it with your fingers.
Once the magnets have been removed, we recommend cleaning any adhesive residue off the windshield and then wiping it with a glass cleaner until the surface is clean.
Once the windshield is dry and clean, you can attach new magnets to the windshield.