Kuryakyn #4218 - LED Battery Gauge Universal Black

If the reading drops below 10v or exceeds 15v, a flashing red L.E.D. will alert the rider of an impending stall or the possibility of damage to the battery and/or sensitive electronic components on the motorcycle

A daylight sensor automatically adjusts the brightness of the LEDs|A little advance warning can keep you from being stranded in the middle of nowhere|A little advanced warning can keep you from being stranded in the middle of nowhere|Amber LEDs warn the rider that the bike is not charging|Green LEDs represent the normal operating range of your charging system, 12.5v to 14.5v|If the reading drops below 10v or exceeds 15v, a flashing red L.E.D. will alert the rider of an impending stall or the possibility of damage to the battery and/or sensitive electronic components on the motorcycle|Includes self-adhesive backing|Now you will know at a glance whether or not your charging system is working properly|Our LED Battery Gauge is an array of LEDs indicating the operating voltage of the bikes electrical system|Simple two-wire connection and a compact size (about 2x3/4x3/16) make installation a breeze