Please note that this fully functioning but USED 12/24 volt transformer. It has been tested and certified as working. It is designed for the PetSafe® RF-105®, RF-105D®, ProPlus® and Pro TX-1® wall-mounted transmitters. This unit has been out of production for over 15 yrs. We have a limited supply of used but working transformers on hand. They are thoroughly tested before we ship them, so we know they work, but there is no warranty. (We have never had a report of one arriving DOA or not performing satisfactorily for any period of time.) As of this writing (12/31/19) this listing is the only available on the internet. I know, that is hard to believe, right? But, the internet is dynamic. If you find an alternate source, let me know so I can buy some too. And if you find a better price, let me know and I will see if I can match it.
Note: The power supply we send you will be tested and we know that it works. There are no returns, refunds or exchanges of this item.