Test the complete installation#
NFC uses a short-range electromagnetic field, so nearby material, antenna orientation and spacing matter. A tag that works in your hand may fail when attached directly to a metal counter.
Metal can detune or shield a normal tag. Use an on-metal design, ferrite layer or sufficient engineered spacing. Glass is usually easier, but metallic films, mirror layers, frames or heating elements may interfere. Dry wood and common plastics are often suitable, although thickness, glue, coating and hidden metal still matter.
Phone accessories also count: thick cases, magnetic wallets and metal mounting plates can reduce reliability. Test before permanent installation, on the exact final surface, with at least one iPhone and one Android. Confirm both NFC and the QR fallback before fixing the product in place.
Good to know
Does a normal NFC tag work directly on metal?
Can glass interfere?
Is one test phone enough?
Make the next step easier for guests.
An NFC stand opens the right link with one phone tap. No app and no searching.