A900 Car HUD Head Up Display – 3.5" Speedometer, RPM & Voltage Warning

The A900 car HUD is a 3.5-inch head up display designed to keep important driving information visible on your windshield. It displays vehicle speed, RPM, water temperature, and voltage, helping you monitor key vehicle data without constantly looking down at the dashboard.

With its clear digital screen and wired OBD connection, the A900 car HUD provides a convenient way to view real-time vehicle information. The system works with a 12V vehicle power supply and supports a rated working voltage of DC 9–16V.

Key Features

3.5-inch digital display

Real-time speed display

RPM monitoring

Water temperature display

Vehicle voltage monitoring

Low-voltage warning function

Overspeed warning alarm

Wired connection

Durable ABS construction

Compact 90 × 54 × 14 mm design

CE, RoHS, and FCC certified

The A900 car HUD is suitable for drivers who want a compact windshield display with essential vehicle information and warning functions. Its projection-style design makes speed and other data easy to reference while driving.

Specifications

Model: New A900 Car HUD Head Up Display

Display Size: 3.5 inches

Material: ABS

Working Voltage: DC 9–16V

Rated Voltage: 12V

Connection: Wired

Size: 90 × 54 × 14 mm

Alarm: 30 dB(A)

Functions: Speed, RPM, water temperature, voltage, low voltage, overspeed warning

Certifications: CE, RoHS, FCC

This compact HUD combines essential vehicle monitoring features with a clear digital display, making it a practical option for compatible vehicles using the required connection and voltage range.