GRUNDIG 550S Solar Powered TPMS for RVs & Trucks, 6–36 Wheel Monitoring, 200 PSI, Real-Time Tire Pressure & Temp Alerts

• Large Backlit LCD Display: High-definition display panel with adjustable backlight ensures clear, effortless reading under intense sunlight or dark night driving conditions.
• Dual Power & Versatile Brackets: Supports both high-efficiency Solar charging and a mini Type-C USB port. Comes with two mounting brackets for flexible windshield or dashboard placement.
• Real-Time Safety Alarm Modes: Instant visual and audible alerts for High Pressure, Low Pressure, High Temperature, Fast Leakage, Sensor Low Battery. 
• German Infineon Microchip Engineering: Powered by an advanced Infineon processor and explosion-proof battery for maximum RF wireless stability, rapid 3-second refresh rates, and pinpoint accuracy (±1.5 PSI / ±2°C).
• Supports 6 to 36 Wheel Monitoring: Multi-axle expandability seamlessly monitors from 6 up to 36 tires simultaneously. Flexible unit conversion available (PSI, BAR, ℉, ℃).
• Digital Tire Position Exchange: Easily swap tire positions directly on the display menu after tire rotations without having to physically unscrew and reinstall sensors.
• IP67 Waterproof & Extreme Operating Range: External sensors operate reliably from -40°C to 120°C (-40°F to 248°F) with user-replaceable CR1632 batteries (up to 2-year battery life).
• Heavy-Duty US & European Compatibility: Designed for Class A/B/C RVs, Fifth Wheels, Travel Trailers, Dually Trucks, European Campervans, and Commercial Multi-Axle Rigs.

Specially engineered for American and European long-haul RVs, heavy-duty tow rigs, and multi-axle commercial fleets requiring continuous high-pressure stability:

• US Motorhomes (Class A, B & C): Fully supports large Class A pushers, Class C rigs, and European integrated motorhomes (Wohnmobile) on Fiat Ducato, Mercedes Sprinter, or Ford chassis.
• Fifth-Wheel Trailers & Toy Haulers: Prevents dangerous highway blowouts on heavy-duty American Fifth Wheels and multi-axle Travel Trailers during long interstate hauls or European autobahn trips.
• Dually Pickup Trucks & Tow Vehicles: Seamlessly monitors multi-wheel setups on heavy-duty dually pickups (Ford Super Duty F-350/F-450, RAM 3500, Chevrolet Silverado 3500 HD) and tow rigs.
• European Campervans & Van Conversions: Optimized for popular European campervan conversions (Kastenwagen) including VW Crafter/Transporter, Mercedes Sprinter, Fiat Ducato, and Renault Master.
• Commercial Transports & 18-Wheel Rigs: Built for commercial semi-trucks, 18-wheelers, heavy logistics trailers, and multi-axle transport configurations supporting up to 36 wheel positions.

At the heart of the GRUNDIG 550S is the industry-leading German Infineon Microchip. Built with precise German engineering standards, it operates on a dedicated 433.92MHz frequency to ensure rapid 3-second signal refresh rates, exceptional anti-interference stability across long trailer lengths, and ultra-low power consumption for extended battery lifespan.

Stay informed and drive with total confidence. The system provides 5 comprehensive safety alarms (High/Low Pressure, High Temp, Fast Leak, Sensor Low Battery) with real-time visual and audible warnings:

Protect Your Family, Your RV, and Your Journey. Beyond simple monitoring, this system is your ultimate insurance against the unexpected. A tire blowout on a remote interstate or European highway can ruin a long-planned road trip and lead to costly repairs. By alerting you to pressure and temperature changes instantly, it helps prevent serious accidents and ensures optimal tire footprint—reducing rolling resistance and saving fuel on every long haul.