AOMOSUR
X91 Off-Road TPMS & Inclinometer – Tire Pressure, GPS Speed & Slope Meter All-in-One
TPMS, GPS and Vehicle-Attitude Data in One Display
A purpose-built off-road instrument combining live tire pressure and temperature monitoring, vehicle pitch and roll, and GPS + BeiDou driving information—without relying on OBD or a mobile app.
- Live tire pressure and temperature
- High/low pressure and high-temperature alarms
- Sensor battery and malfunction alerts
- −40° to +40° pitch and roll
- GPS speed, altitude, coordinates and compass
- Overspeed and fatigue-driving reminders
- DC 11.5–30V support for 12V and 24V vehicles
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Designed for 4×4, SUV, pickup and off-road vehicles, X91 helps drivers monitor tire safety and vehicle attitude on uneven terrain, steep slopes and long-distance overland routes.
Built for Off-Road & Overland Driving
Off-road driving puts extreme stress on both tires and vehicle stability. Uneven terrain, side slopes, steep climbs and high surface temperatures can quickly turn into safety risks.
The AOMOSUR X91 is engineered specifically for these conditions, providing tire health data and vehicle attitude information in one dedicated dashboard display.
Off-Road TPMS – Tire Safety Comes First
X91’s primary function is real-time tire pressure and tire temperature monitoring.
During off-road driving, incorrect tire pressure can reduce traction, increase sidewall damage or cause overheating at speed.
The system continuously monitors each tire and provides audible alarms for:
- High tire pressure
- Low tire pressure
- High tire temperature
- Sensor low battery
- Sensor malfunction
Pressure units (BAR / PSI) and temperature units (°C / °F) can be adjusted to match regional and driver preference.
Vehicle Attitude Monitoring – Pitch & Roll Awareness
X91 features a built-in digital inclinometer displaying:
- Pitch angle (front & rear): –40° to +40°
- Roll angle (left & right): –40° to +40°
This information is critical when navigating:
- Side slopes and camber roads
- Steep ascents and descents
- Uneven trails and rock crawling sections
A scale + numeric display allows quick visual judgment without distraction.
GPS Driving Data for Remote Routes
For off-road and overland travel where onboard vehicle data may be limited, X91 integrates GPS / Beidou dual-mode positioning, providing:
- GPS speed
- Altitude
- Latitude & longitude
- Compass direction
- Satellite signal status
- Time display (auto calibrated)
The system works independently and does not rely on OBD or mobile apps.
Off-Road Safety Alerts
To support long-distance and night driving, X91 includes:
- Customizable overspeed alarm
- Fatigue driving reminder
- Audible alerts with sound on/off control
These features help reduce risk during extended off-road journeys.
Vehicle-Grade Power & Rugged Design
- Wide power input range: DC 11.5V – 30V (12V / 24V vehicles)
- Auto power on with vehicle start
- Automatic sleep when parked
- Ambient light sensor for automatic screen brightness adjustment
The housing uses ABS + PC high-temperature resistant material with a carbon-fiber appearance, designed to withstand vibration, heat and continuous vehicle installation.
X91 specifications
Power, positioning and inclinometer specifications synchronized from the original AOMOSUR X91 listing.
Frequently asked questions
Practical answers based only on the functions and specifications published on the original X91 page.
1. What does X91 monitor?
X91 combines tire pressure and temperature monitoring with GPS speed, altitude, coordinates, compass direction, pitch, roll, time and vehicle-voltage information.
2. Does X91 require OBD-II or a smartphone app?
No. It is a standalone instrument with its own display and GPS + BeiDou positioning. It does not depend on OBD or a mobile app.
3. What tire-safety alerts are supported?
X91 provides audible alerts for high pressure, low pressure, high temperature, low sensor battery and sensor malfunction. Alarm thresholds can be configured for the applicable tire setup.
4. Can I change the pressure and temperature units?
Yes. Pressure can be shown in BAR or PSI, and temperature can be shown in °C or °F.
5. How are external TPMS sensors installed?
Remove the original valve caps and screw each compatible sensor onto the assigned tire valve stem. Tighten it securely by hand and check for air leakage.
6. How do I pair or replace a sensor?
The monitor can detect compatible installed sensors. For a replacement or manual assignment, enter pairing mode and follow the display prompts for the correct tire position.
7. What is the pitch and roll range?
X91 displays front/rear pitch and left/right roll from −40° to +40° as a vehicle-attitude reference for uneven terrain.
8. Which vehicles can use X91?
Its DC 11.5–30V power range supports common 12V and 24V applications, including compatible 4×4 vehicles, SUVs, pickups and off-road platforms.
9. Does the display adjust for day and night?
Yes. An ambient-light sensor adjusts screen brightness automatically, and the unit powers on with the vehicle and sleeps when parked.
10. Are TPMS sensors included?
Sensor quantity and type depend on the selected order. Confirm whether the package includes internal or external sensors before purchase.
What’s included
Included components for the selected AOMOSUR product configuration.
- 1 × X91 Host Machine (Display Unit)
- 1 × Cigarette Lighter Power Cable (1.5m)
- 1 × Hard-Wire Power Cable (1.5m)
- 1 × Non-Slip Dashboard Mat
- 1 × Product User Manual
- TPMS Sensors — internal or external, quantity according to the selected order
Need help with compatibility or installation?
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