4 in 1 Car Voltmeter,USB Charger Adapter QC3.0+PD3.0 Auto Cigarette Lighter Voltage Meter Vehicle Temperature Gauge Battery Tester Monitor with LCD Digital Display for 12V/24V Truck,SUV,Bus

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• USB QC3.0 + PD3.0 Fast Charging: Dual-port high-performance output for car charger sockets. USB QC3.0/PD3.0 fast charging: 5V/2.4A, 9V/2A, 12V/1.5A. Connects two devices for simultaneous charging, faster than traditional chargers. (Mobile phones must support fast charging and use original charging cables.)
• Temperature Measurement: The cigarette lighter voltage meter measures cabin temperature with precision from -10°C to 80°C. For accurate readings, the external temperature sensor can be folded to avoid potential direct heating/sunlight exposure.
• Voltage Monitoring: The car battery voltage meter USB charger continuously monitors vehicle voltage in real-time, preventing issues like failed starts due to voltage fluctuations. If voltage drops below 12.5V, cease using electrical devices to avoid starting difficulties. The car voltmeter is compatible with 12V-24V vehicles including cars, SUVs, trucks, and buses.
• LCD Display: The liquid crystal screen provides real-time readings of battery voltage and cabin temperature, ensuring vehicle safety. Temperature display color: green; voltage display color: red. Simply plug into the cigarette lighter socket for instant battery voltage confirmation, featuring low power consumption and high brightness.
• Safety Protection: The car charger's cigarette lighter socket incorporates a built-in fuse to prevent overcurrent, overload, overheating, and short circuits. This ensures safe daily use without damaging your vehicle. The car charger cigarette lighter socket is plug-and-play.