1. Introducció
The ATOTOZONE AC-UTP1 USB TPMS (Tire Pressure Monitoring System) External Sensor is designed to provide real-time tire pressure and temperature information directly to your compatible ATOTOZONE Android car stereo. This system enhances driving safety by alerting you to abnormal tire conditions. This manual provides detailed instructions for installation, operation, and maintenance.
2. Components del producte
The AC-UTP1 system includes the following components:
- 4 x External Tire Pressure Sensors (labeled FL, FR, RL, RR for Front Left, Front Right, Rear Left, Rear Right)
- 1 x Receptor USB
- 4 x Anti-loss Nuts
- 1 x Special Wrench

Figure 2.1: External Tire Pressure Sensors (FL, FR, RL, RR)

Figure 2.2: USB Receiver and Sensor Dimensions
3. Configuració i instal·lació
3.1 Instal·lació del sensor
Install the four external sensors on your vehicle's tires according to their designated positions (FL, FR, RL, RR). The position labels are printed on the back of each sensor.
- Remove the original valve cap from the tire valve.
- Screw the anti-loss nut clockwise onto the valve stem until it reaches the base of the valve.
- Screw the corresponding TPMS sensor clockwise onto the valve stem.
- Use the special wrench to tighten the anti-loss nut counter-clockwise against the sensor to secure it.

Figure 3.1: Sensor Installation Steps
3.2 USB Receiver Installation
Connect the USB receiver to your ATOTOZONE Android car stereo.
- Connect the USB receiver to an available USB-A port on your ATOTOZONE car stereo.
- Assegureu-vos que la connexió sigui segura.

Figure 3.2: USB Receiver Connection
3.3 Configuració inicial
Once the sensors are installed and the USB receiver is connected, turn on your car stereo. The TPMS application should automatically launch or be accessible from your stereo's app menu. The system will begin displaying real-time tire pressure and temperature data.

Figure 3.3: Real-time Tire Monitoring Display
4. Instruccions de funcionament
4.1 Monitorització en temps real
The AC-UTP1 continuously monitors your tire pressure and temperature, displaying the data on your ATOTOZONE Android car stereo's HD screen. This allows for immediate awareness of your tire conditions.
4.2 Alertes personalitzables
The system provides customizable alerts for various tire conditions. You can set specific temperature and pressure ranges. If any tire exceeds or falls below these preset values, the system will trigger visual and audible alerts on the screen, regardless of the application currently in use.

Figure 4.1: Customizable Alert Settings
4.3 Dual Alert System
To ensure important notifications are not missed, the system provides both visual and audible alerts.
5. Manteniment
5.1 Sensor Battery Replacement
The external sensors are powered by replaceable button cell batteries (BR1225 or CR1225). When a sensor's battery is low, the system will typically indicate this on the display. To replace a sensor battery:
- Unscrew the sensor cap counter-clockwise. If it's difficult to turn, use the special wrench.
- Carefully remove the old button cell battery.
- Insert a new BR1225 or CR1225 battery with the positive (+) side facing up.
- Screw the sensor cap back on clockwise and tighten it securely with the special wrench.
Video 5.1: Sensor Battery Replacement Guide (for NKD-258, similar process applies)
This video demonstrates the battery replacement process for a similar external TPMS sensor. Follow these steps for your AC-UTP1 sensors.
6. Solució De Problemes
If you encounter issues with your AC-UTP1 TPMS, consider the following:
- No Signal/Incorrect Readings: Ensure sensors are correctly installed and tightened. Check the USB receiver connection to the car stereo. Verify that the car stereo is compatible and the TPMS app is running.
- Sensor Battery Low: Replace the sensor battery as described in Section 5.1.
- Problemes de compatibilitat: Refer to Section 7 for compatibility information. Ensure your ATOTOZONE head unit is one of the supported models.
For further assistance, please contact ATOTOZONE customer support.
7. Especificacions
| Característica | Especificació |
|---|---|
| Número de model | ACUTP1 |
| Pes del producte | 130 g |
| Dimensions del paquet | 17.8 x 13.9 x 4.8 cm |
| Precisió de la mesura | ±1.5% ~ ±3% |
| Tipus de muntatge | Tire Mount (External Sensors) |
| Tipus de sortida | Digital (USB to Head Unit) |
| Aplicació | Automotive, Tire Pressure Monitoring |
| Ús de la bateria | No (for receiver), Yes (for sensors - BR1225/CR1225) |
8. Compatibilitat
The ATOTOZONE AC-UTP1 TPMS is specifically designed for use with the following ATOTOZONE Android car stereo series:
- Sèrie A5
- Sèrie A6
- Sèrie S8
- Sèrie P9
- Sèrie X10
This product is NOT compatible with F7, P5, or P8 series ATOTOZONE car stereos, or any third-party car navigation/audio systems.

Figure 8.1: ATOTOZONE TPMS Compatibility
Video 8.1: ATOTOZONE IAH10D (A5L) Head Unit Installation Guide
This video demonstrates the installation of a compatible ATOTOZONE A5L head unit, which supports the AC-UTP1 TPMS.
Vídeo 8.2: Acabatview of ATOTOZONE A5L Android 2DIN 10.1-inch Head Unit
Aquest vídeo ofereix un finalview of a compatible ATOTOZONE A5L head unit, highlighting its features and design.
9. Garantia i Suport
ATOTOZONE provides a 12-month product care period from the date of purchase. For detailed warranty information, please refer to the package insert. Our customer care team is available on weekdays to assist you with any inquiries or issues.
- Cura del producte: 12 months from purchase.
- Atenció al client: Available on weekdays.
- Manuals en línia: Available in various languages.

Figure 9.1: ATOTOZONE Product Care and Support