When I first got my multi-meter I was unsure how to use it to test my batteries and atomizers. Hopefully this tutorial will give you the basics of checking your equipment on your own. I am by no means an electrical expert, this is the bare bones information on checking the voltage of your devices and batteries, and the resistance of your atomizers. DISCLAIMER: I purchased this device for my own personal use. My opinions are my own, and so is the way I vape. Be aware that your mileage/experience/luck may vary. Twitter: @mergryphon The Mod Junkie Show, live on Vapetv.com 10pm Friday nights