AUTOSIRS Wireless Solar GPS Speedometer for Cars — USB-C, 1000mAh Battery, Large Digital Display

The AUTOSIRS Wireless Solar GPS Digital Speedometer displays real-time speed in large digits, with solar-assisted power, safety alerts, and plug-and-play dash mounting for any vehicle.

Compact and easy to use, this digital GPS speedometer gives drivers a clear, always-accurate readout of vehicle speed (MPH or KM/H) plus time, altitude, and temperature. It pairs USB-C primary charging with a solar panel to extend runtime and uses GPS signals for calibration-free speed readings — no wiring or vehicle integration required. Built-in alerts and auto-brightness make it practical for daily commutes, long trips, and fleet applications.

How does the AUTOSIRS speedometer show accurate speed without calibration?

The unit calculates speed directly from GPS satellite data, so you won't need to connect to your vehicle's system or perform manual calibration. It instantly switches between MPH and KM/H with a single touch, giving consistently accurate readings across different vehicles and terrains.

• GPS-based speed measurement for reliable accuracy
• One-touch toggle between MPH and KM/H
• No wiring or vehicle-specific setup required
• Large, easy-to-read digits for quick glances

What power options and runtime can I expect on the road?

The speedometer uses USB-C as its main power source for continuous operation, while an integrated solar panel provides extra runtime during daylight. A built-in 1000mAh battery offers substantial hours of use when external power isn’t available.

• USB-C primary power for uninterrupted use
• Solar-assisted charging adds 2–4 extra hours in sunny conditions
• 1000mAh internal battery for about 20 hours of typical use
• Vibration-sensing auto-wake to conserve battery when parked

Which safety features help prevent speeding and driver fatigue?

The device includes dual safety alerts: an overspeed alarm you can set within a wide range and a configurable fatigue reminder to prompt breaks on long drives. Alerts are audible and visible so drivers get timely warnings without needing to stare at the display.

• Overspeed alert adjustable from 6 to 112 mph (10–180 km/h)
• Fatigue reminder adjustable up to 11 hours of driving time
• Audible warnings paired with on-screen notifications
• Helps drivers maintain safer habits on long trips

What additional information does the display provide?

Beyond speed, the AUTOSIRS screen offers GPS-synced time, altitude readings, and interior temperature, all with auto-dimming to keep visibility comfortable day or night. These extra metrics give a fuller picture of driving conditions without cluttering your dash.

• Auto-set, GPS-synced clock for accurate timekeeping
• Real-time altitude readout useful for varied terrain
• Onboard temperature display for cabin awareness
• Automatic brightness adjustment avoids glare and eye strain

Who is this for: The AUTOSIRS Wireless Solar GPS Digital Speedometer is suited for drivers who want a simple, portable, and accurate speed readout without modifying their vehicle. It's ideal for owners of cars, trucks, and SUVs, rideshare and delivery drivers, and anyone who values clear speed information, safety alerts, and low-effort installation. If you need a hands-off, reliable dash companion that combines GPS accuracy with solar-extended runtime and practical safety features, this unit is designed for you.