This is what I posted on another thread
Watch that one. I don't think it's the G2 version. The G2 fires down to 0.007 ohms and the one you posted is 0.05 ohms. Not a huge issue but I think someone said that that particular version is not firmware upgradable. I could be wrong about the upgrade but the ohms part is in the description.
Open the battery door to the one you sent and see if it has an upgrade port.