4.5" RV Trailer Tire Pressure Monitoring System with Flow Through Sensor, Solar TPMS with Signal Booster, 0-188 PSI, 6 Alert Modes, for Semi Truck, 5th Wheel, Camper (20 Flow Through Sensors)

Upgrade your travel safety with the Tmaister 4.5" RV Trailer Tire Pressure Monitoring System — the professional TPMS built for semi trucks, RVs, 5th wheels, motorhomes, campers and long trailers. Designed to monitor up to 22 wheels with a 0–188 PSI range, this system gives you full visibility of tire pressure and temperature in real time, so you can drive with total confidence.

• [6 Intelligent Alert Modes for Maximum Road Safety] This RV tire pressure monitoring system is equipped with a 4.5" HD color display, supporting 0-188 PSI detection and monitoring up to 22 wheels with the included signal booster. It provides 6 smart alerts: high/low pressure, rapid air leakage, high temperature, sensor data loss and low battery, with clear audible and visual warnings to effectively prevent tire blowouts and breakdowns for semi trucks, RVs, 5th wheels, motorhomes, campers and long trailers.
• [Dual Charging: Solar & USB‑C for Uninterrupted Power] Features solar charging for eco-friendly on‑road power supply and USB‑C fast charging (fully charged in 3–4 hours for up to 15 days of use). The dual charging system eliminates battery anxiety and ensures stable performance even in harsh weather, keeping your TPMS always ready for long trips.
• [Inflate Without Removing Sensors & High PrecisionInnovative] Flow‑through sensor design allows direct tire inflation without taking off sensors, saving maintenance time and cost. With ±1 PSI high accuracy and IP67 waterproof rating, the sensors deliver stable readings, reduce uneven tire wear and extend tire life. Note: Not compatible with short rubber valve stems; metal valve stems are recommended.
• [Smart Power Saving & Extreme Weather Resistant] Auto-sleep mode activates after 5 minutes of parking to lower power consumption, and wakes instantly when driving motion is detected. The monitor works reliably in -4°F to 185°F for all seasons. After restart, the system syncs all tire data in 5–10 minutes with rapid leak alerts active during sync, then updates readings continuously in real time.
• [Anti-Theft Sensors & Stable Long-Range Signal] Flow-through sensors come with anti-theft locking nuts to secure your equipment. The included signal booster ensures strong, stable signal for 100ft+ long trucks and multi-trailer setups. IP67 rugged construction withstands tough road conditions. Important: O-rings in the package are spare parts only—do not install unless replacing a damaged original seal. Backed by 24/7 professional customer support.