2nd Stage SCUBA Regulator Recently Serviced Very Used

I recently purchased this reg from my dive shop. I purchased it from them for $30 to use briefly on my pony for a single weekend. It served its purpose for me but I didn't plan on keeping it so I am now selling it on ebay. I don't know much about the brand, on the front it says Cavalero and on the back it says Beuchat. My dive shop serviced it before selling it to me. It worked fine for me in cold water and had no issues in the water. The only issue I know is above water, the purge button is sensitive where if you push it, air will come out until you put your finger or something in front of the mouthpiece. Let me know if you have any further questions. This is being sold as is. Like I said, it worked fine for me doing a bunch of cold water dives during a single weekend with no issues. I will NOT ship internationally!