The Eleaf Digital Ohm and Volt Meter is for testing the battery voltage and resistance of the tank. There are two threading posts on the deck, one 510 to 510 adapter come with this tester. The left port is designed for testing battery voltage; 510/eGo battery can be tested directly. The right port is designed for testing tank resistance; after screwing the adapter on the port, 510 tanks can be tested directly.
Voltage/resistance will be displayed on the screen on the left of the deck. When the device is turned on, the LED display will illuminate. When there is no activity for 10 seconds, the device will enter standby mode and the LED display will turn off. Once an atomizer or battery is connected to the device, it will exit standby mode and the LED display will turn back on.