Masoll M13 Tire Pressure Monitoring System TPMS — 4 Sensors, Solar-Assisted Color LCD for RVs & Trailers

The Masoll M13 Tire Pressure Monitoring System is a 4-sensor TPMS designed to continuously monitor tire pressure and temperature for RVs, trailers and light trucks, providing auto-calibrated alerts and solar-assisted power for long trips.

The Masoll M13 is built to keep drivers informed about tire health on vehicles with four tires — sedans, SUVs, pickups, and trailers up to about 38 ft. It combines automatic calibration, solar charging, a color LCD with adaptive backlight, and precise pressure sensing to reduce tire wear and help you spot problems early. The system’s sensors install on valve stems and transmit data wirelessly to the dashboard monitor so you can see live readings while driving or parked.

How does the M13 detect and warn about unsafe tire pressure?

The M13 uses built-in pressure chips in each external sensor to measure PSI from 0–87 with approximately ±1.5 PSI accuracy. Once you inflate tires to your chosen pressure, sensors record that value as the reference and will trigger alarms when pressure drops 15% below or rises 25% above that baseline, so you don’t need to program thresholds manually.

• Automatic reference-pressure calibration when tires are set to target pressure
• Visual and audible alarms for overpressure and underpressure
• Temperature monitoring to help spot heat-related problems
• Sensor range suitable for most passenger vehicles and trailers under 38 ft

What powers the sensors and how long do they last on the road?

Each sensor includes a small battery augmented by an integrated high-efficiency solar panel on the sensor body. The solar-assisted design reduces dependence on internal battery life by charging continuously in daylight while built-in protections prevent overheating or overcharging. Intelligent wake/sleep functions preserve power when the vehicle is stationary.

• Solar panel on each sensor supplies supplemental charging
• Overheat and overcharge protection to prolong battery life
• Auto sleep and wake modes minimize power drain when parked
• Recommended signal booster for trailers longer than 38 ft to maintain connectivity

How easy is installation and day-to-day use of the Masoll M13?

Installation is straightforward: screw the sensors onto valve stems and mount the monitor on the dash or windshield. The monitor’s HD color LCD auto-adjusts brightness and features an anti-reflective screen so readings remain legible in bright sunlight or at night. The system is largely maintenance-free once installed.

• Thread-on external sensors fit standard valve stems
• Plug-and-play pairing — set tires once and the sensors auto-calibrate
• High-definition color display with auto backlight and anti-reflective coating
• Clear numeric PSI and temperature readouts for each tire

Will the M13 work on my RV or trailer for long-distance travel?

The M13 is suitable for most RVs, travel trailers, and light commercial vehicles that have four monitored tires. For trailers longer than 38 ft, Masoll recommends adding a signal booster to ensure stable communication between sensors and the monitor over greater distances or through heavy chassis construction.

• Designed for sedans, SUVs, pickups, RVs and trailers under 38 ft
• Optional signal booster improves performance on longer trailers
• Helps maintain tire life and may reduce fuel waste by identifying pressure issues early
• Compact monitor mountable on dash or windshield for easy visibility

Who this product is for: The Masoll M13 is aimed at RV owners, trailer users, and drivers of light trucks or passenger vehicles who want a reliable, low-maintenance way to track tire pressure and temperature on the road. It suits anyone who prefers automatic calibration, solar-assisted sensor power, and a clear, adaptive display — especially owners of travel trailers up to 38 ft. If you routinely tow long trailers or need extended transmission range through metal frames, budget for a Masoll signal booster to guarantee continuous coverage.