1. Product Overview
The Tenpmas H17R-US5 RV Tire Pressure Monitoring System (TPMS) is designed to provide real-time tire pressure and temperature monitoring for various vehicles, including RVs, trailers, SUVs, and trucks. This system includes a display monitor, six all-metal sensors, and a signal repeater with an external antenna to ensure stable signal transmission over distances up to 66 feet. It supports 2, 4, and 6-wheel configurations.

Image: The Tenpmas TPMS supports 2-wheel (trailer only), 4-wheel (car/trailer), and 6-wheel (car + trailer or RV) configurations.
2. Package Contents
Verify that all components are present in the package:
- 1 x Display Monitor
- 1 x Repeater
- 6 x All-Metal Sensors (including batteries)
- 1 x Long Antenna
- 1 x Short Antenna
- 1 x Removable Stand with Double-Sided Tape
- 6 x Lock Nuts
- 1 x Wrench
- 1 x USB Charging Cable
- 1 x User Manual

Image: All components included in the Tenpmas H17R-US5 TPMS package, including the monitor, repeater, sensors, antennas, stand, lock nuts, wrench, USB cable, and manual.
3. Setup Instructions
3.1 Initial Charging
Before first use, charge the display monitor for at least 3 hours using the provided USB cable. The monitor also supports solar charging for continuous power supply.

Image: The monitor can be charged via USB or continuously powered by solar energy.
3.2 Sensor Installation
- Ensure your vehicle has metal valve stems. Installation on plastic valves is not supported and may cause damage.
- Thread a lock nut onto the valve stem.
- Screw the sensor onto the valve stem until it is hand-tight.
- Use the provided wrench to tighten the lock nut against the sensor to secure it.
- Repeat for all tires. Note that the weight of each sensor is approximately 0.55 ounces (15.5 grams), which may require tire balancing after installation.

Image: The all-metal sensor features a pure copper base for enhanced durability and airtightness, suitable for high-pressure and harsh environments.
3.3 Repeater Installation
The repeater enhances signal strength and stability, especially for longer vehicles or trailers.
- Connect the repeater to a 12V power supply.
- Install the repeater between the display monitor and the furthest sensor.
- The repeater is waterproof and automatically pairs with the system.

Image: The repeater requires a 12V power supply, is internally potted for waterproofing, and should be installed between the display and the furthest sensor.
3.4 Display Monitor Placement
Attach the monitor to your dashboard using the removable stand and double-sided tape. Ensure the solar panel is exposed to sunlight for optimal charging.

Image: The monitor features a detachable stand for easy installation and removal.
4. Operating Instructions
4.1 Real-Time Monitoring
The monitor displays tire pressure and temperature for all connected sensors in real-time. This system provides 24-hour real-time updates, ensuring that any tire pressure changes, even during sleep mode, are immediately displayed upon waking up.

Image: The Tenpmas TPMS provides immediate updates on tire pressure changes, unlike older systems that require driving to update values after sleep mode.
4.2 Alarm Modes
The system features 5 alarm modes to alert you to potential tire issues:
- High Pressure Alarm: Alerts when tire pressure exceeds a preset maximum.
- Low Pressure Alarm: Alerts when tire pressure drops below a preset minimum.
- Fast Leak Alarm: Alerts rapidly for sudden pressure drops.
- High Temperature Alarm: Alerts when tire temperature exceeds a safe limit.
- Sensor Loss Alarm: Alerts if a sensor signal is lost.
Alarms provide both sound and light prompts. You can adjust high and low PSI warning thresholds as needed.

Image: The monitor displays various alarm conditions including air leakage, high/low pressure, high temperature, and sensor low voltage.
4.3 Display Settings
The monitor offers 5 levels of brightness adjustment for clear visibility in various lighting conditions, from bright sunlight to night driving.

Image: The monitor's brightness can be adjusted through 5 levels to suit different ambient light conditions.
4.4 Automatic Sleep Mode & Vibration Detection
The system features an automatic sleep mode for lower power consumption. It also includes a vibration detection function that automatically activates the monitor when motion is detected.
5. Maintenance
5.1 Sensor Battery Replacement
The sensors use CR1632 button cell batteries. To replace a sensor battery:
- Unscrew the sensor from the valve stem.
- Use the provided wrench to open the sensor casing.
- Carefully remove the old CR1632 battery.
- Insert a new CR1632 battery, ensuring correct polarity.
- Close the sensor casing and re-install it on the valve stem, securing with the lock nut.
5.2 Cleaning
Wipe the monitor and sensors with a soft, damp cloth. Avoid using harsh chemicals or abrasive cleaners.
5.3 Storage
When not in use for extended periods, it is recommended to remove the sensors from the valve stems and remove their batteries to prevent drainage. Store the kit indoors in a cool, dry place.
6. Troubleshooting
- Sensor Not Registering/Pairing: If a sensor fails to register, try replacing its battery. Ensure the repeater is properly installed and powered, especially for longer vehicles.
- Signal Loss/Interference: Ensure the repeater is correctly positioned between the monitor and the furthest sensors. Avoid placing the monitor directly on the dashboard if it causes interference; try a higher position. The external antenna design provides a maximum stable working distance of 66 feet.
- Monitor Screen Not Turning Off: If the monitor screen remains on, block the solar charger to allow it to power down.
- Rapid Sensor Battery Drain: Ensure the monitor is turning off or entering sleep mode when the vehicle is stationary. If the screen remains on constantly, it can contribute to sensor battery drain.
- Inaccurate Readings: Verify sensors are securely tightened on metal valve stems. Ensure tire balancing has been performed if necessary due to sensor weight.
7. Specifications
| Feature | Specification |
|---|---|
| Model | H17R-US5 |
| Brand | Tenpmas |
| Material | Metal (Sensors) |
| Monitor Dimensions (L x W x H) | 4.41 x 2.24 x 0.98 inches |
| Monitor Screen Size | 3.15 inches |
| Monitor Battery Capacity | 1500 mAh |
| Sensor Pressure Range | 0-130 PSI (0-9 bar) |
| Pressure Accuracy | ±1 PSI |
| Repeater Range | Up to 66 feet |
| Repeater Power Supply | 12V |
| Sensor Battery Type | CR1632 (user replaceable) |
| Waterproof Rating | Repeater is waterproof |
| Charging Methods | USB, Solar |
8. Warranty and Support
8.1 Warranty Information
This product comes with a 1-year manufacturer's warranty.
8.2 Customer Support
For technical assistance, warranty claims, or further inquiries, please refer to the contact information provided in the physical manual or visit the official Tenpmas website.