Three-Level Over-Speed Alarm: Set three custom speed alarms (Level 1-3), settings at 150/180/199 MPH or KmH (Range: 0-400). Supports speed fine-tuning (50-150 range) to match actual vehicle speed.
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Digital Speedometer Car HUD Head Up Display MPH KM/H, Overspeed Alarm,
Three-Level Over-Speed Alarm: Set three custom speed alarms (Level 1-3), settings at 150/180/199 MPH or KmH (Range: 0-400). Supports speed fine-tuning (50-150 range) to match actual vehicle speed.