Description
Product Overview
The Longacre Waterproof SMi™ Panel is engineered to deliver accurate water and oil temperature readings in the harshest automotive environments. Constructed from a painted, corrosion‑resistant alloy housing, the unit measures 8 x 6.5 x 6.2 inches and weighs just three pounds, making it both robust and easy to mount. The panel features a full‑color LED backlight that illuminates numbers and pointers, ensuring readability in daylight, at night, or under heavy rain. A unique color‑changing warning system shifts the backlight hue when temperature thresholds are exceeded, instantly drawing the driver’s attention without the need for audible alarms. The device ships fully wired, with pre‑terminated connectors that simplify installation to a matter of minutes. Model 52‑44560 (SKU 52‑44560) is compatible with most standard gauge clusters and integrates seamlessly with existing vehicle electronics, providing a plug‑and‑play solution for both hobbyists and professional mechanics. ![[Product front view showing all components]](https://www.prismstore.store/wp-content/uploads/2026/06/a91d07f464a4474792723b742c0465aa.jpg)
Usage
Designed for daily drivers, performance enthusiasts, and fleet operators, the Waterproof SMi Panel thrives in any scenario where temperature data is critical. Whether you are washing your car, driving through a rainstorm, or navigating night‑time routes, the sealed enclosure prevents water ingress, eliminating the need to remove the gauge before a wash. The bright LED display remains legible on winding mountain roads, during off‑road adventures, or while towing heavy loads that generate excess heat. Install the panel in the dashboard, center console, or any custom gauge cluster to monitor coolant, oil, or transmission temperatures in real time. The customizable warning thresholds let you set low‑ and high‑temperature alerts that match the specifications of your engine, ensuring you never miss a critical change. Ideal for classic car restorations, modern sports cars, and commercial trucks alike, the panel provides peace of mind for anyone who relies on precise temperature data.
Why Choose Us
Longacre’s reputation for durable automotive accessories is backed by decades of engineering expertise and a commitment to quality control. Each Waterproof SMi Panel undergoes rigorous testing for water resistance, vibration tolerance, and temperature accuracy before it reaches the customer. The panel’s painted exterior not only resists scratches but also matches a wide range of interior trims, giving your vehicle a cohesive look. Our after‑sales support includes a dedicated technical helpline, detailed installation manuals, and a one‑year limited warranty that covers manufacturing defects. Because the unit arrives fully wired, you avoid hidden costs associated with custom harnesses or additional connectors. Longacre also offers optional firmware updates that refine sensor calibration and expand compatibility with newer vehicle models, ensuring your investment remains future‑proof. When you choose Longacre, you choose a partner that stands behind every product with transparent service and a focus on long‑term reliability.
Key Features
- Waterproof sealed housing eliminates the need to remove the gauge before car washes.
- LED backlit numbers and pointers provide crystal‑clear visibility in all lighting conditions.
- Color‑changing backlight alerts instantly when temperature limits are reached.
- Fully wired and ready‑to‑install design reduces setup time to minutes.
- Comprehensive after‑sales support and one‑year warranty for peace of mind.
FAQ
Can the panel be installed in any vehicle?
Yes, the Waterproof SMi Panel is designed to fit standard gauge clusters found in most passenger cars, trucks, and performance vehicles. Installation requires only basic tools and the provided wiring harness.
What temperatures can the gauge measure?
The gauge accurately monitors coolant and oil temperatures from -40°C up to 150°C, covering the full operating range of most automotive engines.
How does the color‑changing warning system work?
You can program low‑ and high‑temperature thresholds via the built‑in configuration menu. When a threshold is crossed, the LED backlight shifts to a predefined color (e.g., blue for low, red for high) to alert the driver.
Is the panel compatible with aftermarket dashboards?
Absolutely. The panel’s universal mounting brackets and adjustable wiring connectors make it compatible with both OEM and aftermarket dashboards, allowing seamless integration.
What kind of warranty and support does Longacre provide?
Longacre offers a one‑year limited warranty covering manufacturing defects, plus access to a dedicated support team for installation assistance, firmware updates, and troubleshooting.





EnRand Adjustable Boost Elbow Turbo Controller
Reviews
There are no reviews yet.