This is a simple, thumbnail-size RFID tag. Isn't it cute as a button? These tags are great for sensing presence, identification, and more, and they're small enough to be easily sewn into clothing or inserted into enclosures. Each tag comes with a unique 32-bit ID code and is not reprogrammable. The carrier frequency of this tag is 125kHz, so it works great with the ID-3LA, ID-12LA, and ID-20LA RFID reader modules. We tested this RFID tag with one of our ID-12LA readers and measured a maximum read distance of about 32mm. https://elecena.pl/product/930770/rfid-button-16mm-125khz 2009-11-04 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2016-11-25 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2016-11-28 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2016-11-29 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2016-12-09 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2016-12-13 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2017-11-10 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2017-11-13 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2017-11-24 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2017-11-28 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2018-05-05 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2018-11-21 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2018-11-27 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2022-02-22 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2025-04-11 https://elecena.pl/product/930770/rfid-button-16mm-125khz 2025-04-14