3-in-1 USB Charger, Voltmeter & Thermometer for Cars and Motorcycles

$59.90

~~$89.90~~ $59.90

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Color Red Blue Green

Three Essential Functions. One Smart Device.

Why carry three gadgets when one does it all? This 3-in-1 USB voltmeter and thermometer plugs directly into your cigarette lighter socket and instantly delivers real-time battery voltage, cabin temperature, and a fast USB charging port — all on a bright LED display, with zero installation required.

3-in-1 USB voltmeter thermometer cigarette lighter

Stay in Control of Your Vehicle's Health

Whether you're on a long road trip or a daily commute, this compact 3-in-1 voltmeter thermometer keeps you informed at all times. Monitor your battery before it fails, track cabin temperature for comfort, and keep your devices charged — all from a single socket on any 12V or 24V vehicle.

LED display showing voltage and temperature readings

Key Benefits

✅ 3-in-1 functionality — voltmeter + thermometer + USB charger in one plug
✅ Real-time battery voltage monitoring — catch drops before they leave you stranded
✅ Cabin temperature display — -10°C to +80°C range with external sensor
✅ 5V USB output — fast and convenient phone charging on the go
✅ Compatible with 12V and 24V vehicles — cars, SUVs, trucks, buses, motorcycles
✅ Fireproof ABS shell — safe, durable, and heat-resistant
✅ No tools or wiring needed — plug in and it works instantly

3-in-1 device plugged into car cigarette lighter socket

How the Voltmeter Works

Once connected, the USB voltmeter thermometer immediately reads your battery voltage on screen. It supports 12V cars and SUVs as well as 24V trucks and buses, giving you an accurate picture of your electrical system's health at any moment.

Voltage reading display on dashboard

How the Thermometer Works

The external temperature sensor bends flexibly to measure ambient cabin air — not heat from sun-exposed surfaces. Position it away from direct sunlight or hot vents for the most accurate reading between -10°C and +80°C.

External temperature sensor placement