Review on 🚀 HOTSYSTEM 7 Color Turbo Boost/Vacuum Gauge Kit | High-precision Pointer & LED Digital Readouts | 2-1/16" 52mm Black Dial | Ideal for Car Truck Performance Monitoring by Ben Duncan

Good bright with changeable colors to choose from The digital part is set to blue and that part doesn't turn off, just turn it off that way Disconnecting cables from the battery or putting a switch somewhere. I think that drains the battery and at night it's too bright and can't be dimmed. The instructions are confusing, but here's an easier way to make it green from the boost sensor. Connect green from the boost sensor and black from the boost sensor and the sensor is connected to the wire from the terminal - from the battery (you need to route the wire from the terminals - and + from the terminal). battery in your car) and the red color of the sensor and the boost sensor connect with the wire from the + terminal, and then stick your T to the right place on the vacuum line and run it in your car to get the boost too to display. and also the sensors send an electronic signal to the boost sensor itself and that's how it measures the boost, not a bad price for that but I've only had it a few days so we'll have to see how long it lasts.