We're thrilled to introduce the JRP 3-in-1 52mm Oil Pressure & Water Temp Gauge, now featuring an essential third function: engine low coolant detection and alarm. This innovative gauge has quickly become one of the most sought-after additions to our product lineup, building on the success of our Edge Dual 52mm Boost & EGT Gauge. It offers a true 3-in-1 solution by simultaneously monitoring oil pressure, water temperature, and providing an early warning if coolant levels drop in your radiator system. Perfect for any vehicle, this gauge is especially valuable when paired with our Dual Boost & EGT Gauge for diesel owners. Together, these two JRP 52mm gauges provide comprehensive monitoring for Boost, EGT, Water Temp, Oil Pressure, and Low Coolant Detection—a unique and unmatched capability in the 52mm gauge market.
After nearly two years of development, we are excited to bring this cutting-edge 3-in-1 gauge to market. Whether you're an off-road enthusiast, performance street driver, or track racer, this gauge covers the critical aspects of engine monitoring, ensuring you're alerted to potential problems before they develop into costly failures.
For Diesel 4x4 owners, this 52mm 3-in-1 gauge is especially valuable when combined with our 52mm Dual Boost & EGT Gauge. Thanks to the CPW (Colour Pre-Warn) technology, the gauge provides early, color-coded warnings as water temperatures and EGTs rise. This allows you to take proactive action long before these metrics reach critical levels. Additionally, monitoring oil pressure ensures your engine remains properly lubricated, with immediate alerts for any significant drops in pressure. The low coolant detection feature also provides peace of mind, alerting you to coolant loss from any cause—whether it’s a damaged radiator, a loose hose, or a minor leak—helping you avoid engine damage due to overheating.
Key Features
Water Temperature Monitoring with CPW Technology
Our renowned Colour Pre-Warn (CPW) system provides color-coded alerts as water temperatures start to rise, allowing for early intervention. This proactive feature helps prevent overheating and engine damage by alerting you well before the temperature reaches dangerous levels.
Oil Pressure Monitoring
The gauge ensures your engine stays properly lubricated by continuously monitoring oil pressure. A significant drop in pressure triggers an immediate alert, helping to protect your engine from damage due to insufficient lubrication. Whether you're driving a diesel or petrol engine, oil pressure monitoring is crucial for engine health, and we're proud to include it in this 3-in-1 gauge.
Engine Low Coolant Alarm
Equipped with a dedicated low coolant sensor, this gauge provides instant alerts if your coolant levels drop. This is a vital feature to prevent overheating, especially in situations where coolant loss may go unnoticed, such as during off-road driving (hitting a rock), hose failure, or leaks. A typical standalone low coolant detection system can cost around $200, but with this JRP Edge 3-in-1 Gauge, you get all three features—oil pressure, water temperature, and low coolant detection—at a price that's comparable to just buying a standalone coolant alarm. This offers tremendous value and ensures you're better equipped to protect your vehicle without breaking the bank.
With the JRP 3-in-1 52mm Oil Pressure & Water Temp Gauge, you’re getting industry-leading technology that helps you stay ahead of potential engine issues, keeping your vehicle running smoothly and protecting it from costly damage.
Water Temp Readout 0-120c
Oil Pressure Readout 0-145psi
Low Coolant Detection System
Numeric & Scale Type Readout Displays
Colour Pre-Warn Feature
Configurable Warnings
Water Temp Warning – High
Oil Pressure Warning - Low
Engine Low Coolant Alarm
Peak Value Recoding
10-Colour Selectable LCD
3 Selectable opening & Closing Ceremonies
3 Outer Scale Display Type Selections
Daytime Brightness & Colour Selection
Night Brightness & Colour Selection
52mm Water Temp & Oil Pressure Gauge + Low Coolant
52mm Gauge Pod & Mounting Kit
U-Bracket Pillar Mounting Kit
2-Wire 3m 1/8 PT Water Temp Sensor
3-Wire 3m 1/8 PT Oil Pressure Sensor
2-Wire 3m 1/8 NPT Low Coolant Sensor
1m Remote Button Controller
1.5m Power Cable
20cm Power Link Cable
Why Choose the JRP Edge 52mm 3-in-1 Gauge?
The JRP Edge 52mm range stands out for its innovative Colour Pre-Warn (CPW) technology, providing proactive visual alerts through a three-stage color change system. This allows you to monitor your vehicle’s water temperatures with minimal distraction, relying on peripheral vision to spot any changes before they become critical. This approach reduces anxiety, as you can “drive by gauge”—trusting that the color change will alert you when temperatures approach dangerous levels, without having to constantly focus on your gauge.
If you already have a JRP Boost & EGT Gauge in your 4x4, or are considering adding one—whether as a dual gauge or individual Boost and EGT units—this 3-in-1 Water Temp, Oil Pressure, and Low Coolant Detection gauge might be just what you need to complete your monitoring setup. Together with the Boost & EGT gauge, you’ll have complete coverage for your Water Temp, Oil Pressure, and Coolant Levels, with CPW providing early visual warnings. Unlike many alternatives on the market, which sell low coolant detection systems for nearly $200, our 3-in-1 gauge combines these essential features at a competitive price point.
Unmatched Value and Innovation
At JRP, we're proud of our 3-in-1 gauge because it encapsulates our commitment to quality, functionality, and innovation—all at an affordable price. We understand that no one wants to face catastrophic engine failures or spend thousands of dollars on gauges just to prevent them. That's why we've created a powerful, cost-effective 3-in-1 solution to protect your engine, whether it’s a 1980s model or a brand-new 2023 vehicle. JRP is dedicated to safeguarding all vehicles, old or new, without breaking the bank.
Colour Pre-Warn (CPW) Feature
At JRP, innovation is at the heart of what we do. We understand the practical needs of drivers and strive to make our products as user-friendly as possible. The Colour Pre-Warn (CPW) system, developed for our 52mm temperature gauges, is a prime example of this philosophy in action.
Most temperature gauges offer a single warning setting, which you either set to trigger when reaching a critical threshold or lower it to avoid false alarms. However, this can lead to either constant warnings or the risk of missing an overheating situation. With the JRP Edge v1.5, you get a two-stage warning system. The first stage is a visual alert, where the gauge color changes as temperatures rise, allowing you to track changes without intrusive alarms.
For example, you can set your water temperature to run at blue and program a final alarm at 100°C. With CPW enabled, the gauge will change color as follows:
- 85°C: Blue to Yellow
- 90°C: Yellow to Orange
- 95°C: Orange to Red
- 100°C: Red (Alarm Sounds)
This CPW function provides a non-invasive, visual indication that temperatures are rising, giving you more time to react. With CPW, you can set a more aggressive final audible alarm while still being visually alerted early enough to avoid critical damage.
You can even customize the colors used for each warning stage and adjust the sensitivity of the CPW to your needs. It’s a simple yet customizable feature that enhances your ability to manage engine temperatures proactively.
Engine Low Coolant Alarm: Head Guard Technology
The JRP 3-in-1 52mm Gauge comes equipped with Head Guard technology, an advanced low coolant sensor that constantly monitors your radiator system for any drop in coolant levels. If your coolant level falls below the normal range, the gauge will immediately activate a low coolant alarm, alerting you early to prevent overheating and engine damage.
Why is Detecting Low Coolant Critical?
Many vehicles lack factory-installed low coolant sensors, but with JRP Head Guard, you’re immediately alerted to any coolant loss, potentially saving you from expensive repairs. For example, if you’re off-roading and a rock punctures your radiator, coolant can leak out quickly, causing your engine to overheat and possibly warp the cylinder head. With the Head Guard system, you get an early warning, allowing you to stop, assess the situation, and prevent catastrophic damage.
Advantages of Head Guard Monitoring:
- Timely Coolant Detection: Head Guard provides early alerts to falling coolant levels, allowing you to stop before engine damage occurs.
- Off-Road Protection: If you often drive in tough conditions, such as off-road, the Head Guard system offers peace of mind by detecting leaks caused by debris, rocks, or rough terrain.
- Cost-Effective: While standalone low coolant detection systems can cost $200 or more, JRP Head Guard integrates this function directly into the 3-in-1 gauge, making it a highly affordable option.
Innovative Design & Real-World Benefits
At JRP, we continually strive to improve the safety and reliability of your vehicle. The integration of a low coolant sensor within a water temperature gauge is just one example of our dedication to creating functional, all-in-one solutions. You get both accurate water temperature readings and continuous coolant monitoring, giving you greater peace of mind and protection for your engine.
3-Port Radiator Hose Sensor Adapter
For a smooth installation, we offer an innovative 3-port radiator hose adapter designed to accommodate the necessary water temperature and low coolant sensors, while leaving an additional port available for future upgrades. These adapters, ranging from 28mm to 40mm, make installation easier by consolidating sensor connections into one location. This simplifies wiring and minimizes the complexity of sensor placement, ensuring a clean, seamless setup.
High-Quality Sensors & Superior Display
Since 2016, JRP has been committed to providing accurate, reliable, and affordable gauges for the performance and off-road markets. Our Edge range utilizes premium temperature sensors and high-end LCD panels for precise performance. The VA-type LCD panels in our 52mm gauges offer exceptional brightness (600 nits) and clarity, even in bright sunlight, making them highly visible from any angle. The high-quality construction of our gauges is complemented by scratch-resistant tempered glass, ensuring they look and perform well for years.
Convenient Features for Easier Installation & Use
- Simplified Power Installation: The Power Link cable enables you to connect multiple gauges through a single power cable, reducing wiring complexity and installation time.
- Remote Control: Our external cabled controller makes it easy to adjust settings, change colors, and reset peak values without removing the gauge from its mount.
- Customizable Warnings & Peaks: Set personalized warning thresholds and monitor the highest recorded values, ensuring you're always on top of engine health.
By choosing the JRP 3-in-1 52mm Gauge with Head Guard, you're opting for advanced, integrated engine protection—offering both peace of mind and practical, cost-effective solutions to keep your vehicle running smoothly, whether you're on the street, track, or trail.
