WG-40W white [Electronics]

so I wanted to show this metal detector now I have the battery packs in it everything works so I was nice I won't have to replace any components first actually how many batteries this thing actually takes I only think are notorious for being battery hog size no idea how long these are last if you see there this takes one pack of eight double waves in one pack of six doublea's to provide nine volts and 12 volts there's the serial number of manufacture date so in total that's fourteen batteries again not sure how long they'll actually last so if we turn it on this is the intensity meter and as the battery test service the nine volts is good 12 volts also good here's a volume so the way we tune this is if we're looking for metal we're going to bring all the way up the middle we need a result in the warehouse for brings down to leave what you wanted to just barely kind of slight buzzing so