A900 OBD2 Car HUD Head-Up Display – 3.5", Speed, RPM, Water Temp & Voltage

More Data. Safer Driving.

The A900 OBD2 head-up display projects five key engine metrics onto your windshield — speed, RPM, water temperature, voltage, and low voltage alerts — so you can monitor your car’s health without taking your eyes off the road. The 3.5" display is larger and more data-rich than standard HUDs, giving you a full engine readout at a glance. Plug the OBD2 cable in and it auto-configures to your vehicle. CE, RoHS, and FCC certified. Compatible with any OBD2 vehicle (most cars and light trucks made after 1996).

Key Features

• 3.5" windshield projection — larger display for more data at a glance
• OBD2 plug-and-play — auto-matches your vehicle, no setup needed
• 5 display metrics: Speed • RPM • Water temperature • Voltage • Low voltage alert
• Overspeed alarm — audible alert ≥30dB when speed limit is exceeded
• CE, RoHS & FCC certified — safety and compliance tested
• DC 9–16V — compatible with standard 12V vehicles
• Compact ABS housing — 90 × 54 × 14mm

Specifications

• Model: A900 | Display: 3.5"
• Functions: Speed, RPM, water temp, voltage, low voltage alarm, overspeed alarm
• Voltage: DC 9–16V | Alarm: ≥30dB
• Dimensions: 90 × 54 × 14mm | Material: ABS
• Certifications: CE, RoHS, FCC
• Compatible with: OBD2 vehicles (most cars/trucks after 1996)