Introduction
The Hieha RV Tire Pressure Monitoring System (TPMS) is designed to provide real-time monitoring of your vehicle's tire pressure and temperature, enhancing driving safety for RVs, travel trailers, coaches, trucks, fifth wheels, and motorhomes. This system features a 7.84-inch solar-powered display and six external sensors, offering comprehensive tire data and timely alerts for various abnormal conditions.
Setup
Package Contents
Before beginning installation, please verify that all components are present:
- 1 x TPMS Monitor (7.84-inch display)
- 6 x External Tire Pressure Sensors
- 6 x Anti-theft Nuts
- 6 x O-Rings
- 1 x User Manual
- 1 x Anti-slip Mat
- 1 x Antenna
- 1 x Wrench
- 1 x USB Charging Cable
Figure 1: Hieha TPMS Package Contents
Charging the Monitor
The TPMS monitor can be charged via its high-efficiency solar panel or the included USB charging cable. For initial use, it is recommended to fully charge the monitor using the USB cable to ensure optimal performance.
Figure 2: Solar Charging Capability
Sensor Installation
The external sensors are designed for easy and quick installation on your tire valves. They are lightweight and durable.
- Ensure tires are at recommended pressure before installation.
- Unscrew the original valve cap.
- Screw on the anti-theft nut.
- Screw the sensor onto the valve stem. Ensure the sensor is tightened securely to prevent air leakage.
- Tighten the anti-theft nut against the sensor using the provided wrench.
- Repeat for all six tires.
Figure 3: Lightweight Sensor and Easy Installation
Initial Pairing and Calibration
The sensors are typically pre-paired with the monitor. If a sensor is replaced or not displaying data, refer to the user manual for specific pairing instructions. Some users have found resetting the system to factory defaults and re-adding sensors can resolve initial setup issues.
Operating Your TPMS
Real-time Monitoring
The 7.84-inch color screen provides clear, real-time display of tire pressure and temperature for all connected tires. The display is designed for readability even in varying light conditions.
Figure 4: Clear Display in Various Conditions
Alarm Functions
The system provides timely warnings for critical tire conditions:
- Air Leakage Alarm: Alerts for rapid pressure drops.
- Low Pressure Alarm: Warns when tire pressure falls below a set threshold.
- High Pressure Alarm: Alerts when tire pressure exceeds a set threshold.
- High Temperature Alarm: Notifies if tire temperature becomes excessively high.
- Sensor Data Loss Alarm: Indicates a sensor is not transmitting data.
- Low Battery Alarm: Alerts when a sensor's battery is low.
Figure 5: Visual Representation of Alarm Indicators
Smart Features
- Intelligent Wake-up & Sleep Monitor: The monitor automatically wakes up upon detecting driving vibration and enters sleep mode when the vehicle stops, conserving battery life.
- 130FT Sensing Distance: The system's strong antenna signal allows for reliable data transmission up to 130 feet, eliminating the need for a repeater in most large vehicles.
Figure 6: Extended Sensing Range and Automatic Sleep Mode
Maintenance
To ensure the longevity and accuracy of your Hieha TPMS, follow these maintenance guidelines:
- Monitor Charging: Regularly expose the monitor to sunlight for solar charging or use the USB cable to maintain its 5000mAh battery. The monitor is designed for 24-hour continuous battery life.
- Sensor Care: The sensors are waterproof and dust-proof. Periodically check them for any physical damage or signs of wear. Ensure they remain securely tightened on the valve stems.
- Cleaning: Clean the monitor screen and sensors with a soft, dry cloth. Avoid abrasive cleaners or solvents.
Troubleshooting
If you encounter issues with your TPMS, refer to the following common problems and solutions:
| Problem | Possible Cause / Solution |
|---|---|
| Sensors not reading or displaying data. |
|
| Inaccurate pressure/temperature readings. |
|
| Monitor not turning on or losing power. |
|
| Weak signal or intermittent connection. |
|
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 7.87 x 4.33 x 3.15 inches |
| Item Model Number | CZ-TYJC-4Tires (Note: This model number may refer to a series; this manual covers the 6-sensor variant.) |
| Batteries | 4 Lithium Ion batteries required (included) |
| Manufacturer | Hieha |
| Material | Plastic |
| Item Weight | 860 Grams (1.9 Pounds) |
| Screen Size | 7.84 Inches |
| Pressure Range | 0~198 PSI |
| Pressure Accuracy | +/- 1 PSI |
| Sensing Distance | Up to 130 feet |
Warranty and Support
Hieha is committed to product quality and customer satisfaction.
- Warranty: Any product quality problem within one year of purchase is eligible for a free replacement.
- Customer Service: Hieha provides 24-hour after-sales service. For any inquiries, technical assistance, or warranty claims, please contact Hieha customer support through the official channels provided at the point of purchase or on the Hieha brand website.
