In-Line Assembled Voltage Indicator for 510 Threaded Devices, Version 2
3 digit Red Digital LED displays battery / device output Voltage. Use with or without an attached Atomizer depending if you desire "no-load" or "under-load" readings. Device must be activated for a few seconds for an accurate reading, display will "blink" while the chip is processing information. These indicators may not work properly with batteries that use linear or pulsing regulators and will just flash. (Certain EGO type devices will flash, with no Voltage displayed, ex: LUX, and Viper series batteries are reverse polarity) 510 Shorty adapter may be needed to connect voltmeter with recessed atomizer connection devices.