Bluetooth External Valve Cap Tyre Pressure Monitoring Sensor Kit.  ❭  ONTRACKTPMS.EXT

External Tyre Valve Cap TPMS Sensors (Pack of 4)

Monitor your tyre pressures and temperatures with confidence using the OnTrack External Tyre Valve Cap TPMS Sensors. Originally developed for track days, motorsport and high-performance driving, these lightweight Bluetooth® sensors are equally at home on the road, allowing everyday drivers to monitor tyre pressures and temperatures in real time to improve reliability, safety, tyre life and overall driving confidence.

Replacing your existing valve caps, the external sensors install in minutes with no tyre removal or specialist tools required. Once paired with the free OnTrack App, they provide fast, accurate, real-time pressure and temperature readings for all four tyres, helping you identify pressure loss, uneven temperatures and changing tyre conditions before they become a problem.

Unlike many conventional TPMS systems, OnTrack delivers ultra-fast refresh rates via Bluetooth Low Energy (BLE), allowing you to monitor tyre performance live whether you're chasing lap times on circuit, enjoying a spirited weekend drive or simply keeping your Porsche's tyres at their optimum pressure during everyday use.

Features

• External wireless TPMS valve cap sensors
• Pack of four sensors
• Real-time tyre pressure and temperature monitoring
• Ultra-fast refresh rates
• Bluetooth Low Energy (BLE) connectivity
• Live data displayed in the OnTrack App
• Custom pressure and temperature alerts
• Quick, tool-free installation
• Easily transferable between compatible vehicles
• Free iOS App (Android compatibility coming Late Summer 2026)

Ideal For

• Track days
• Motorsport
• Performance driving / Fast road use
• Everyday driving tyre pressure monitoring

The OnTrack External TPMS Sensors are primarily intended for vehicles without a factory TPMS system. They can also be fitted to vehicles with factory TPMS, although all tyre pressure and temperature data will be displayed through the OnTrack App rather than the vehicle's original instrument display.

Live Tyre Monitoring

The OnTrack system continuously measures each tyre individually, allowing you to:

• Monitor live tyre pressures
• Monitor tyre temperatures
• Detect slow punctures and pressure loss early
• Identify uneven tyre temperatures
• Receive instant pressure and temperature alerts
• Optimise tyre pressures for maximum grip, tyre life and efficiency

The system's exceptionally fast refresh rates provide near real-time information, helping drivers make informed decisions whether on circuit or on the road.

Package Contents

• 4 x External Wireless Tyre Pressure & Temperature Sensors
• Free OnTrack App (iOS)
• Android compatibility coming Late Summer 2026

Why Choose OnTrack?

Designed by motorsport enthusiasts, OnTrack TPMS gives you professional-grade tyre monitoring in a simple, portable package. While engineered to withstand the demands of circuit driving, it's just as valuable for everyday road use, helping you maintain correct tyre pressures, improve fuel efficiency, reduce tyre wear and drive with greater confidence wherever your journey takes you.

Bluetooth Low Energy Connectivity

The OnTrack External TPMS Sensors communicate wirelessly using Bluetooth Low Energy (BLE) technology, providing fast, reliable communication with the dedicated OnTrack App while maintaining excellent battery efficiency.

The intuitive app allows users to:

• View live tyre pressures
• Monitor tyre temperatures
• Display all four tyres simultaneously
• Set custom pressure alerts
• Set temperature warnings
• Monitor tyre performance throughout every driving session

The free app is currently available for iOS, with Android compatibility coming late Summer 2026.