20x30mm Tamper Tag

Encoding Yourself

You can encode your tags with a smartphone and it's quick and easy.

1. Download the NFC tools app - it's free for both iPhone and Android users
2. Open the app and tap 'Write', then add a record
3. Tap 'Custom URL/URI', and then copy and paste your URL into the given text box.
4. Tap OK, and then tap 'Write'
5. Hold your phone over the tag, and your tag will encode. That's it !

For more information, have a look at our How to encode tags with an iPhone and How to encode tags with an Android phone pages. 

Encoding by Seritag

Seritag have fast and accurate encoding services when you need a large number of tags encoded or you want to be absolutely sure that the encoding is handled correctly. 

For full information on how to order your NFC tags encoded by Seritag, read our Ordering NFC Tags with Encoding advice page. 

There are two main categories of NFC tamper labels - Destruct type (which stop working on tamper) and Detect type (which continue to work but can tell if a tamper has been made). Destruct labels have two sub-types : scratch and peel. Detect have two sub-types : break and capacitive. 

Tamper tags don't like movement. They work best on firm, solid and non-flexible surfaces such as glass or rigid plastics. 

Scratch Tamper

Scratch tamper tags are designed to disintegrate on an attempt to remove. The tags must be attached to a smooth, clean surface. If you are testing, give the label plenty of time (ideally 24 hours) for the adhesive to get a good grip. An attempt to remove will chip away at the tag and destroy the antenna. These tags can be placed behind other labels. 

Peel Tamper

Peel tamper tags have two layers which are designed to separate when an attempt is made to remove. The tags must be applied to a smooth, clean surface. As with scratch tags, give plenty of time for the adhesive to reach full strength before testing removal. On removal, the top layer will separate from the base layer destroying the antenna and preventing the tag working.