This gauge has a 2 1/16" diameter and comes with a sleek black face, a white pointer, and a black bezel. During the day, it displays in classic black and white, while at night it features white backlighting"”unless you've customized the pointer and backlight colors using the app.

• Gauge Size: 2 1/16" diameter.
• 0 to 2000 °F
• Built-in Bluetooth chip for easy customization 
• Multicolored LEDs for customizable lighting effects.
• Backlighting and pointer color can be customized via the mobile app.
• Complete Kit Includes: harness, sensor, mounting bracket
• Compatible with the EV3 Attribute Programming App
• Sold individually 

EV3 Attribute programming app (available for free download at Google Play and Apple App store)