- Automatic and manual alarm settings for water temperature, low voltage, and driver fatigue help prevent engine damage, battery drain, and unsafe driving. - 3.5-inch HD color display with a multicolor design for vivid, easy-to-read readouts in all lighting conditions. - 5-level brightness with automatic and manual modes; automatic on/off tied to the vehicle ignition to protect the battery, with a manual switch for quick HUD control. - Comprehensive data at a glance: speed, RPM, water temperature, voltage, and active alarms (low voltage, water temperature, overspeed, fatigue); switchable between kilometers and miles. - Practical benefits: clear alerts, reliable performance, and HUD integration that enhances driving awareness without distraction. - Use scenarios: daily urban commute where automatic on/off saves battery and fatigue alerts improve safety; long road trips with continuous monitoring of temp, voltage, and speed; fleet or multi-driver use to maintain consistent vehicle health and alerting. - Compatibility and reliability: designed for vehicles with HUD-friendly displays and standard ignition wiring; straightforward readouts and durable performance for everyday driving and extended trips.