Replacement Voltage Meter/Ignition for Nanrobot D4+ 2.0 / 3.0, LS7, RS7, RS11, X4 Restore ignition control and battery monitoring with this universal voltage meter and ignition combo for Nanrobot scooters that do not use a quick-connect plug. Designed for a wide range of Nanrobot models, this component allows you to monitor battery voltage and power your scooter on/off with an integrated key ignition. Compatible Models: Nanrobot D4+ 2.0 Nanrobot D4+ 3.0 Nanrobot LS7 Nanrobot RS7 Nanrobot RS11 Nanrobot X4 Features: Compatible with Nanrobot scooters that do not use quick-connect systems Combines voltage display and key-operated ignition in one unit Allows for manual control of scooter power and battery monitoring OEM-spec fitment for easy integration and dependable function Includes ignition with key set for security and ease of use