Amazon offers Tymate TM8 RV Tire Pressure Monitoring System, TPMS Set of 4 Sensors for free shipping with Amazon Prime. 

Product Description:

• [Real-Time Monitoring & Multi-Alert System for Enhanced Tire Safety]: The Tymate TM8 TPMS provides accurate real-time monitoring of tire pressure and temperature, with precision up to ±1.5 PSI or ±3°F. It allows users to choose between temperature units (℃ or ℉) and pressure units (BAR or PSI). Equipped with six distinct alarm modes—high/low pressure, rapid air loss, high temperature, low sensor battery, and lost sensor signal—this system ensures reliable tire health monitoring. Ideal for road trip enthusiasts and the pre-owned vehicle market, it offers peace of mind by maintaining constant awareness of tire conditions, helping to enhance safety and prolong vehicle lifespan
• [Flexible Charging Solutions]: The Tymate TM8 TPMS comes with solar-powered automatic charging, providing a consistent power source. It also supports charging via USB port or cigarette lighter (adapter not included), offering flexibility when sunlight isn’t available. This ensures you can focus on the road without concern for TPMS battery life
• [Color LCD Display & Convenient Windshield Mounting]: The Tymate TM8 features a vibrant color LCD screen, ensuring clear and easy-to-read tire pressure and temperature data in any lighting condition. The monitor can be conveniently mounted on the windshield, offering a safer, hands-free viewing experience without obstructing your line of sight or taking up dashboard space. Ideal for daily commuters and long-distance travelers, this setup guarantees optimal visibility and readability at all times
• [Wide Pressure Range & Extended Signal Transmission]: The Tymate TM8 accurately monitors tire pressures ranging from 0 to 87 PSI, making it suitable for a wide range of vehicles, including sedans, SUVs, MPVs, pickup trucks, RVs. The system automatically calibrates to the center tire pressure using sensor pairing for precise reference values. Operating at a frequency of 433.92MHz, it ensures a strong and stable signal transmission between the sensors and the display unit. Warm Note: This TM8 system is not compatible with Tymate Repeater, and we suggest to use this model for total vehicle length less than 20ft
• [User-Friendly Setup & Professional After-Sale Support]: The Tymate TM8 TPMS is quick and easy to set up in just 5 minutes. The package includes a detailed user manual, and step-by-step video guides are available on the product page to assist with the sensor pairing process. If you have any further questions or need assistance, our professional customer support team is always available to help. Warm Note: This TM8 system can only be paired uniquely with Tymate TS3 TPMS sensor which is also listed on Amazon for spare sensor and replacement needs
• [Warm Note]: To ensure the stability and safety of the sensor, it is recommended to install it with a metal valve stem