How is LeakSmart valve powered?

The valve is powered through a 9V DC Wall Adaptor with (4) AA batteries as temporary power backup in case of power outage.

<img height="1" width="1" style="border-style:none;" alt="" src="//googleads.g.doubleclick.net/pagead/viewthroughconversion/949950159/?value=0&guid=ON&script=0"/>