The SmokTech Omnitester 2 is a voltage checker that works with the power of your device. Simply screw the Omnitester 2 onto your mod and then screw your tank/atomizer on to the Omnitester 2. You then power your mod and while vaping, it will read your resistance and or voltage. Perfect for those who use mechanical mods to test the resistance of their coil or battery power remaining or voltage under load.
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