Compare an M7 head-up display with OBD2 and GPS mode directions. Speed, RPM, water-temperature and voltage information are listed, with actual data availability depending on the selected mode and vehicle support.
Choose the supported data route for the actual vehicle
GPS and OBD2 supply different information routes, so switching modes should not imply that every value is available through both. This M7 display lists windshield projection, customizable overspeed alerts and an LED display direction. Confirm the exact model, OBD protocol and vehicle data support before purchase, then set the permitted display position while parked. The unit is an information accessory rather than a substitute for the original instruments or diagnosis of warning faults.
OBD2 and GPS modes offer different connection directions to investigate. Matching the actual vehicle and protocol helps establish which mode and values are supported rather than relying on universal compatibility wording.
02
Several named information values
Speed, RPM, water temperature and voltage provide data fields to compare with the model documentation. Check availability and units so the displayed information can be understood alongside the original instruments.
03
A configurable speed-alert direction
The overspeed-warning feature provides a setting to check within the actual controls. Configure it while parked; the alert remains an accessory function rather than a guarantee against speeding or fines.
Specifications
Model
M7
Modes
OBD2 and GPS
Values described
Speed, RPM, water temperature, voltage
Display
LED / windshield projection wording
Alert
Customizable overspeed warning
Connections
OBD2 and USB-power directions
Additional function
Fault-code clearing via wheel-dial wording; exact supported codes/protocols unconfirmed
Input / vehicle list
Not supplied
Good to know
Does GPS necessarily supply engine RPM?
No. Data availability differs by mode and vehicle support; confirm the actual documentation.
Does clearing a fault code repair the vehicle?
No. The underlying cause needs appropriate diagnosis and service.
Request a return within 14 days after delivery for eligible items that are unused, in their original condition and packaging. See the policy for eligibility and full terms.