C05WB External Tire Pressure Sensor for Passenger Cars

The C05WB is an external, automotive-grade TPMS tire pressure sensor designed for passenger vehicles. It uses 433 MHz FSK radio frequency communication and is screwed directly onto the outside of a passenger vehicle's tire valve stem. As an aftermarket, non-destructive retrofit solution, it is suitable for various types of passenger cars, SUVs, and MPVs.

Developed for daily urban commuting and highway driving conditions, the product is equipped with a high-precision sensor chip that provides data updates every second and parking monitoring capabilities. It collects real-time tire pressure and temperature data, transmits it wirelessly via 433 MHz to the RF receiver unit, quickly provides feedback on tire status, and promptly alerts drivers to abnormal tire pressure, effectively mitigating the risk of tire blowouts at high speeds. Installation requires no tire removal or wheel balancing and allows for quick retrofitting of the original vehicle.

The complete monitoring system is compatible with various passenger vehicles. Centered around the C05WB external tire pressure sensor, the system includes an RF receiver unit, an in-vehicle display terminal, and a main control and warning unit. It integrates non-destructively into the vehicle without damaging the original structure. The core components are as follows:

• Product Model: C05WB
• Communication Frequency: 433 MHz
• Modulation Method: FSK
• Pressure Measurement Range: 0–8 bar
• Measurement Accuracy: 0.05 bar
• Operating Temperature: -30°C to 90°C
• Base Material: Solid metal base
• Data Update Frequency: Updated every second
• Transmission Control: Acceleration-controlled transmission
• Installation Type: External installation for passenger vehicles; mounted directly on the valve stem
• Product Grade: Passenger Vehicle TPMS Sensor
• Design Life: 1.5 years

1. Instant Updates: As soon as the vehicle begins moving, the sensor immediately refreshes tire pressure and temperature data, responding in real time to changes in tire condition.
2. Parked Vehicle Monitoring: When the vehicle is stationary and the engine is off, the system continuously monitors tire pressure to detect potential slow leaks.
3. High-precision pressure sensing with an accuracy of up to 0.05 bar, capturing even the slightest changes in air pressure.
4. Acceleration-Controlled Transmission: Data transmission is controlled by an accelerometer, sending data only when the vehicle is in motion to reduce power consumption.
5. Real-time collection of raw sensor data for tire pressure and temperature.
6. Transmits monitoring data via 433 MHz FSK wireless communication.
7. Supports pairing with an RF receiver unit for stable data transmission.
8. Outputs raw monitoring data to enable the receiver unit to detect anomalies and identify faults.

1. External valve stem installation: No need to remove tires or balance the wheels; does not damage the vehicle's original structure; quick, one-person installation; suitable for aftermarket retrofitting on passenger vehicles.
2. Instant-Motion Updates: Tire pressure data is rapidly refreshed as soon as the vehicle moves, ensuring high real-time performance and enabling timely detection of sudden tire pressure changes even during high-speed driving.
3. Equipped with a solid metal base, featuring a robust structure that resists vibration and deformation, with stable sealing performance to reduce the risk of air leaks.
4. Ultra-high measurement accuracy of 0.05 bar, offering higher sensitivity than conventional TPMS sensors and detecting even the slightest changes in tire pressure.
5. Acceleration-triggered transmission mechanism transmits data on demand to optimize power consumption; paired with parking monitoring, it continues to detect slow air leaks even when the vehicle is parked.
6. 433 MHz FSK radio frequency transmission resists electromagnetic interference from in-vehicle electronics, ensuring stable signals and compatibility with passenger car environments.
7. Wide operating temperature range of -30°C to 90°C, suitable for seasonal driving conditions across northern and southern China.

• Private Passenger Vehicles: Sedans, urban SUVs, and MPVs; ideal for city commuting and highway road trips, providing real-time tire pressure monitoring to prevent blowouts at high speeds.
• Retrofit for Used Vehicles: Passenger vehicles not originally equipped with factory-installed TPMS; low-cost retrofitting of tire pressure monitoring to meet driving safety requirements.
• Short-Distance Commercial Passenger Vehicles: Commercial MPVs and light-duty passenger vehicles; used for daily pickups and drop-offs, as well as short- and long-distance travel tire safety monitoring.
• Passenger Vehicle Aftermarket Modifications: Bulk retrofit projects for auto detailing shops and auto parts markets, enabling quick upgrades of tire pressure monitoring functionality for customers.