This is an Altronix AL 6/12 power supply/charger. I don't know anything about these, so I can only tell you what it says on the box. This came from my dad's things, and he used to do work on security systems and things like that. It is "new old stock," meaning it's still in brand new condition and has never been opened before, but it's an older item that has been sitting on a shelf in the garage. The box does show a small amount of wear from being in storage, but not bad and the box is intact. Asking $5.00 obo. Everything I have listed for sale is "or best offer", so feel free to make an offer. ~~~~~ ALL ITEMS ARE AVAILABLE FOR LOCAL PICKUP. I sell a huge variety of stuff to supplement my income and help me put the last of my kids through college. Some items come from flea markets or estate sales, and some come from around our home, but many items come to me from my extended family of hardcore hoarders. So, the variety really can be vast and unpredictable. Please check back often, because you really never know what I will have from one day to the next! Thanks for visiting and have a great day!