Masoll XM+RP12+8MZS3

Masoll RV/Trailer Tire Pressure Monitoring System (TPMS)

Model: XM+RP12+8MZS3 - User Manual

1. Introduction

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Masoll RV/Trailer Tire Pressure Monitoring System (TPMS) with 8 sensors. This system is designed to monitor tire pressure and temperature in real-time for RVs, travel trailers, 5th wheels, and other compatible vehicles, enhancing driving safety by providing timely alerts for tire abnormalities.

The Masoll TPMS is suitable for vehicles with tire pressures ranging from 0-87 PSI and a transmission distance of up to 120 feet. It includes a color LCD display, 8 external sensors, and a signal booster.

Various vehicle types including car, SUV, pickup truck, RV, camper, travel trailer, and 5th wheel, indicating compatibility with the Masoll TPMS.

Figure 1.1: Compatible Vehicle Types for Masoll TPMS

2. Product Overview

2.1 Components

  • Color LCD Display Monitor: Provides real-time tire pressure and temperature readings.
  • External Sensors (8x): Screw onto tire valve stems to measure pressure and temperature.
  • Signal Booster: Enhances sensor signal transmission to the display, extending range up to 120ft.
  • USB Power Cable: For connecting the display monitor.
  • Security Nuts and Wrench: To secure sensors and prevent theft.

2.2 Key Features

  • RV-Specific Design: Flexible sensor options (2/4/6/8) for various RV configurations.
  • Color LCD Display: Bright and clear readings with 4-level brightness adjustment.
  • Auto Calibration: Sensors are factory-paired; current tire pressure is set as reference upon installation.
  • High-Powered Signal Booster: Ensures stable signal transmission up to 120ft, IP69 waterproof.
  • Multiple Alarms: High/low tire pressure, high temperature, fast leakage, sensor lost, and sensor low voltage alerts.
Image showing the Masoll TPMS display monitor, eight external tire pressure sensors labeled 1-4 and T1-T4, and the signal booster unit.

Figure 2.1: Masoll TPMS Components (Monitor, Sensors, Booster)

Masoll TPMS monitor on a vehicle dashboard, displaying tire pressure and temperature. Below it are icons representing features: Real-Time Pressure/Temp, Max 45ft Trailer, 0-87psi Pressure, 4-Levels Backlights, 5s Auto Swaps, Auto Power On/Off.

Figure 2.2: Masoll TPMS Display and Key Features

3. Setup and Installation

The Masoll TPMS is designed for straightforward installation. Sensors are factory-paired to the monitor, eliminating the need for manual pairing.

3.1 Monitor Installation

  1. Choose a suitable location on your vehicle's dashboard that does not obstruct your view and is easily accessible.
  2. Secure the monitor using the provided mounting accessories (e.g., adhesive pad, suction cup mount).
  3. Connect the monitor to a 12-24V power source using the supplied USB power cable. The monitor will power on automatically.

3.2 Sensor Installation

Before installing sensors, ensure your tires are inflated to their correct pressure. The system will use this as the reference pressure.

  1. Identify the correct sensor for each tire position (e.g., 1, 2, 3, 4 for the towing vehicle; T1, T2, T3, T4 for the trailer). Labels are typically on the sensors.
  2. Remove the original valve cap from the tire valve stem.
  3. Screw on the security nut (if using) onto the valve stem, then screw the sensor onto the valve stem until it is hand-tight.
  4. Tighten the security nut against the sensor using the provided wrench to deter theft and ensure a secure fit.
  5. Repeat for all 8 tires. The monitor should begin displaying readings shortly after installation.

3.3 Signal Booster Installation

The signal booster is crucial for maintaining a stable connection, especially for longer RVs or trailers (up to 120ft transmission distance).

  1. Mount the booster in a central location on your trailer or RV, ideally where it has a clear line of sight to both the sensors and the monitor.
  2. Connect the booster to a 12-24V power source. It is recommended to wire it to a circuit that receives power when the vehicle is running or towing, such as the running light circuit on a trailer.
  3. Ensure the booster is securely mounted and its connections are protected from weather. The booster is IP69 waterproof.
  4. A booster symbol will appear on the monitor display when the booster is actively working.
Diagram illustrating the installation of the Masoll TPMS. A truck and a 5th wheel trailer are shown. The monitor is in the truck, sensors are on each tire (labeled 1-4 for truck, T1-T4 for trailer), and the signal booster is mounted on the trailer.

Figure 3.1: Masoll TPMS Installation Diagram

Close-up of the Masoll TPMS signal booster unit with a truck and trailer in the background. Icons highlight features: Stable connections, 12-24V power source, Booster working symbol on monitor, IP69 waterproof level.

Figure 3.2: Signal Booster for Extended Transmission Distance

4. Operating Instructions

4.1 Display Functions

The color LCD display provides clear, real-time data for all monitored tires. When the truck and trailer are connected, the display automatically rotates between truck and trailer tire data every 5 seconds. If only the truck is being monitored, the display will show only truck tire data.

Masoll TPMS monitor displaying real-time tire pressure and temperature for both a towing vehicle and an RV trailer. The display shows '55 PSI' and '105°F' for each tire, with a graphic representation of the vehicle and trailer.

Figure 4.1: Real-Time Pressure Monitoring Display

4.2 Button Operations

  • "+" Button: Press to manually switch between truck and trailer tire displays when both are connected.
  • "-" Button: (Specific function not detailed in product info, typically for menu navigation or decreasing values if adjustable settings were present).
  • "Wrench" Button:
    • Short press: Adjusts display brightness (4 levels available).
    • Long press (~3 seconds): Toggles the signal booster ON/OFF.

4.3 Alarm System

The system provides visual and audio alarms for various tire conditions:

  • High/Low Tire Pressure Alert: Triggers when actual pressure is 25% higher or 15% lower than the initial reference pressure.
  • High Temperature Alert: Warns if a tire's internal temperature exceeds a safe threshold (e.g., 158°F).
  • Fast Leakage Alert: Detects rapid pressure loss.
  • Sensor Lost Alert: Indicates a sensor is no longer transmitting data.
  • Sensor Low Voltage Alert: Notifies when a sensor's battery is low.

When an alarm is triggered, the display will highlight the affected tire(s) and an audible alert will sound.

5. Maintenance

5.1 Sensor Care

  • Regularly check sensors for physical damage or loose connections.
  • If a sensor low voltage alert occurs, the sensor battery may need replacement. Consult the manufacturer for specific battery types and replacement procedures.
  • Ensure the security nuts are tightened to prevent sensors from loosening during travel.

5.2 Cleaning

  • Clean the display monitor with a soft, dry cloth. Avoid abrasive cleaners or solvents.
  • Sensors and the booster can be wiped clean with a damp cloth. Ensure no moisture enters the booster's electrical connections.

6. Troubleshooting

ProblemPossible CauseSolution
No tire data displayed / Signal loss
  • Booster not powered or not working.
  • Distance between sensors and monitor too great.
  • Sensor battery low or faulty.
  • Interference.
  • Ensure booster is powered and the booster symbol is visible on the monitor.
  • Verify booster is correctly installed and functioning.
  • Check sensor batteries.
  • Relocate monitor or booster if possible to reduce interference.
Display is dim or hard to read
  • Brightness setting is too low.
  • Prolonged exposure to high temperatures.
  • Press the "Wrench" button to adjust brightness to a higher level.
  • If due to high temperatures, the screen clarity should normalize once temperatures return to normal.
Inaccurate pressure readings
  • Sensors not properly tightened.
  • Sensor malfunction.
  • Ensure sensors are securely tightened with the security nuts.
  • Compare readings with a reliable tire gauge. If discrepancies persist, contact support.
Alarm sounds frequently without apparent issue
  • Tire pressure is consistently near alarm thresholds.
  • Reference pressure was set incorrectly.
  • Verify tire pressures are within optimal range for your vehicle.
  • Re-inflate tires to desired pressure and re-install sensors to reset reference pressure.

7. Specifications

  • Brand: Masoll
  • Model: XM+RP12+8MZS3
  • Tire Pressure Range: 0-87 PSI
  • Transmission Distance: Up to 120 ft (with booster)
  • Display Type: Color LCD with 4-level brightness adjustment
  • Booster Waterproof Rating: IP69
  • Power Input: 12-24V
  • Item Weight: 458 g
  • Parcel Dimensions: 16.79 x 12.6 x 6.4 cm

8. Warranty and Support

Masoll products typically come with a manufacturer's warranty. For specific warranty details, duration, and terms, please refer to the documentation included with your purchase or contact the seller directly. If you encounter any issues or require technical assistance, please reach out to the Masoll customer support team or your point of purchase for prompt service.

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