https://devzone.nordicsemi.com/f/nordic-q-a/16874/custom-characteristics-in-standard-serviceDear Nordic Team, Thanks for supporting. How to add custom characteristics in standard service ?. I am using Health Thermometer service (HTS). I want to add two custom service for Low temperature write characteristics and High temperature writeen-USTelligent Community 13Wed, 05 Oct 2016 13:52:51 GMThttps://devzone.nordicsemi.com/thread/64647?ContentTypeID=1Wed, 05 Oct 2016 13:52:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1b2573f2-f0ec-4884-a5a8-c8c18c238c30Petter Myhre<p>If you use the HTS service UUID I think you should implement it according to <a href="https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.service.health_thermometer.xml">its spec</a>. Why not have another custom service with your custom characteristics?</p><div style="clear:both;"></div>