xxRevised Description:xx xxHow to cancel buzzing sound:xx Restart the power supply and hold the button until the buzzing stops, then release. xxHow to reset value:xx After self-check, press and release the button (blue light turns on). Hold again for 3 seconds until the light flashes, then release. The pointer resets to zero in -3 seconds. xxHow to set alarm points and cylinder:xx - xxAlarm points:xx After self-check, hold the button for 5 seconds (pointer flickers), release, then press to adjust (quick taps for fine-tuning, hold for fast adjustment). Pointer resets in -5 seconds. - xxCylinder:xx After self-check or reset, hold for 10 seconds (pointer flickers), release, press to adjust, then release. Pointer resets in -5 seconds. xWhen reaching alarm value, lights flash continuously.x xxFeatures:xx - 100 percent new, fast-response stepper motor. - Two installation options. - DC 12V power, 2.5inch or 60mm diameter, BAR unit. - Adjustable white or amber backlight (wiring required). - Compatible with 12V vehicles. xProfessional installation recommended. Minor variations may occur due to production batches.x xxColor:xx As pictured xxMaterial:xx Plastic xxPackage includes:xx 1x Turbo Boost Gauge set xOnly listed items included. Colors may vary slightly due to lighting or screen differences. Measurement tolerance: 1-3cm.x