How do I locate the product code for my doorbell or accessory?

Either look at the bottom of your doorbell, or inside the battery cover, and locate the grey rating label. On the label, there will be a product code starting with 2 or 3 letters, then 3 digits, followed by some other letters. For example, DC315xx, DC515xx, DW915xx, and so on.

Ratings-Product-Code-for-FAQ