By simply plugging it into your Twizy's OBD socket, Twiz O'Meter is a touch screen that provides a wealth of information that happily complements that of the very brief original dashboard. Via a simple and intuitive interface, you can for example consult the precise remaining charge or the state of health of your batteries. Its gyroscope and Wi-Fi connection bring additional dimensions. It succeeds advantageously to Twizplay which had the same objective but was less complete and much more expensive, and which is no longer available.