Resistance Ohm Meter from Sigelei

From Sigelei this Ohm Meter is powered via USB cord (included) or a single 14500 battery (not included).  Simply plug it into your power source such as your lap top, screw in your atty and turn it on.  You will get a digital read out of your coil.

510 threaded only.  The packaging incorrectly states ego threading but it is ONLY 510 threaded.