Grundig S08 Heavy-Duty RV TPMS | 8/12-Wheel Switchable System up to 217 PSI | 5.0" Large HD Display with Real-Time High Pressure & Temp Alerts for Class A/C Motorhomes, 5th Wheels & Commercial Trucks

GRUNDIG: 80 Years of Automotive Engineering & Precision Founded in Germany in 1945, Grundig established a long-standing reputation for precision engineering and technical reliability. The brand officially entered the automotive industry in 1951 with the development of the Autosuper 248, one of the era’s most advanced car radios. Over the decades, our expertise has evolved from pioneering in-car entertainment to engineering specialized mobility solutions that integrate European technical mastery with a global perspective on vehicle safety. Today, this heritage directly informs our TPMS solutions. We apply eighty years of experience in automotive electronics to address the safety needs of modern road travel. By integrating professional-grade components with real-time sensing technology, Grundig Auto provides reliable monitoring systems that ensure consistency and safety for a wide range of vehicles, from daily commuters to long-distance adventure rigs. ABOUT TPMS Protect Your Family, Your RV, and Your Vacation. Beyond simple monitoring, this system is your ultimate insurance against the unexpected. A tire blowout in the middle of nowhere can ruin a long-planned holiday and lead to costly repairs. By alerting you to pressure changes instantly, it helps prevent accidents and ensures optimal tire footprint—reducing rolling resistance and saving you significant money on fuel during every long haul. Don't let a flat tire ruin your memories; drive with total peace of mind. Proactive Safety Monitoring & Fuel Optimization. The primary function of this TPMS is to deliver precise, real-time tire data to prevent potential blowouts before they happen. When low pressure is detected, the proactive alert guides drivers to re-inflate tires promptly. This crucial step not only extends tire life but ensures optimal rolling resistance, effectively lowering overall fuel consumption for heavy-duty setups. Ⅰ. Compatible Vehicles Specifically engineered for multi-axle configurations and high-pressure industrial tires, supporting seamless monitoring for 8 to 12-wheel setups up to 217 PSI (15.0 Bar): Luxury Class A Diesel Pushers: The ultimate choice for premium, heavy-chassis motorhomes that often feature a tag axle (8 wheels total) and require high-pressure stability for cross-country tours. Massive 5th Wheel & Toy Haulers: Optimized for triple-axle trailers (e.g., Grand Design Momentum, Keystone Fuzion) and heavy-duty towing combinations that exceed standard tire pressure limits. Commercial Trucks & Semi-Trailers: Reliable real-time monitoring for commercial fleet vehicles, including dual-rear-wheel (DRW) box trucks and 10-to-12 wheel semi-configurations. Multi-Axle Boat Trailers: Designed to handle the specialized high-pressure requirements of large boat trailers, ensuring your marine investment is protected against blowouts during long-distance hauls. Dually Pickups with Gooseneck Trailers: Perfect for heavy-duty setups like a Ford F-450 or RAM 3500 towing large gooseneck trailers, where monitoring the entire 8-to-10 wheel footprint is critical for safety. Ⅱ. Product Function 【Industrial-Grade Range: Up to 217 PSI】Specifically engineered for the heaviest rigs, the S08 monitors pressures up to 15.0 Bar (217 PSI). It is the ultimate solution for high-load tires (Range G/H/J) found on Class A Diesel Pushers and massive 5th wheels. 【8/12 Wheel Seamless Switching】Versatility for every configuration. Easily switch between 8-wheel and 12-wheel modes to match your specific setup, whether it's a dually pickup towing a large 5th wheel or a full commercial truck with a trailer. 【40-Meter Long Range & Stable Signal】Specifically designed for large vehicles, the system features a powerful transmission range of up to 40 meters (131 feet). Enjoy consistent data syncing with zero packet loss, making it the perfect monitoring solution for long motorhomes, travel trailers, 5th wheels, and towed vehicles. 【High-Precision Core & Zero Latency】Powered by advanced imported chipsets, this system delivers ultra-precise data feedback with zero latency. It monitors tire conditions in real-time with enhanced stability, allowing you to prevent unexpected blowouts and handle emergencies before they happen. 【Intelligent Automatic Start-Stop】Featuring a built-in vibration sensor, the monitor intelligently powers on when it detects vehicle movement and enters a power-saving standby mode when idle. This fully automated system requires no manual operation, significantly extending battery life and ensuring the device is always ready when you are. 【"Four-Proof" Rugged Reliability】Engineered to endure the harshest road conditions. Our sensors feature a Four-Proof design: IP67 Waterproof, Anti-Seismic, Dust-Proof, and Anti-Corrosion. From melting bitumen to freezing mud, these sensors provide 24/7 reliability without failure. 【Recommended Signal Repeater for Extended Lengths】For motorhomes, 5th wheels, or towing setups exceeding 30 feet in total length, a Signal Repeater is highly recommended. RV chassis and dense metal structures can naturally attenuate radio frequency (RF) signals. The repeater is designed to amplify the signal from the rear tires, ensuring stable, uninterrupted 433.92MHz data transmission to your display monitor, preventing intermittent readings. Check the 'With Repeater' option in the dropdown menu if your rig is over 30ft to ensure zero signal dropouts during cross-country trips. 【Up to 1-Year Sensor Battery Life】Engineered for heavy-duty applications, our external sensors reliably monitor extreme tire pressures up to 8.0 Bar while maintaining optimal energy efficiency. Powered by easily replaceable batteries, each sensor delivers up to 12 months of continuous operational life under standard driving conditions. The system display will proactively alert you when a sensor battery runs low. Ⅲ. Purchase Precautions Before placing an order, please carefully confirm whether it is compatible with your model. IMPORTANT: ADAPT ALARM SETTINGS BEFORE USE! The factory default high-pressure alarm for the S08 is set at 10.0 Bar (145 PSI). While this is designed for heavy-duty use, tire requirements for Class A Motorhomes, 5th Wheels, and Commercial Trucks vary significantly. To prevent false alerts or delayed warnings, you MUST reset your high and low pressure alarm limits (Supports up to 217 PSI / 15.0 Bar) according to your specific tire manufacturer standards BEFORE installation. Ensure your safety thresholds are correctly calibrated for a quiet and secure journey across long distances.