You need a multimeter, which I'd recommend every vapor have. Doesn't have to be an expensive one for our needs. If you have a Harbor Freight close they did have some on sale for $3 and if not you should be able to pick one up around $10ish. If you want to purchase online probably more like $20ish.
Anyway, once you get a multimeter checking ohms is easy, just set the meter to the lowest ohm setting, touch one post to the center hole on the battery end and the other post to the surrounding metal.
No way to tell what those are you linked without measuring or checking with the vendor and even then they could be off a little. They look like standard 808 vertical coil so without measuring I'd guess somewhere between 2.8 and 3ish.
Just checked HS, according the the website they still have it on sale.
http://www.harborfreight.com/7-function-digital-multimeter-90899.html