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Low Coolant Alarm

Get an early warning against engine overheating with a simple coolant level detector.

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Want to know if your coolant is running low? Ask about the Redarc low coolant alarm.

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Enhance your cooling system with a low coolant alarm

Upgrade your cooling system with a simple and effective low coolant level alarm kit. The coolant level alarm alerts you when the liquid in the radiator drops below the designated level, preventing engine damage due to overheating.

This low coolant sensor is especially useful for vehicles that lack a factory-installed temperature gauge. It monitors both sudden and gradual coolant loss, ensuring you receive an early warning before overheating becomes a serious issue.

Radiator coolant
Coolant top up

Why install a low coolant level sensor?

A coolant level alarm provides an essential safeguard for your vehicle’s engine, ensuring you receive an early warning if coolant levels drop unexpectedly. This proactive measure can help prevent costly repairs and engine damage by alerting you to potential leaks or overheating risks before they become serious issues.

It is particularly beneficial for vehicles frequently used in off-road environments, towing heavy loads, or operating under extreme conditions. These situations place additional stress on a cooling system, making it more susceptible to coolant loss.

The installation process is straightforward, with options for 12V and 24V systems, making it suitable for a wide range of vehicles, from everyday cars to trucks and industrial equipment.

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National warranty applies to selected cooling system parts fitted to your vehicle

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Australia's most trusted name in repair solutions for vehicle cooling systems

Radiators

Access to an extensive range of OE and aftermarket vehicle cooling parts

Nationwide warranty

A Natrad specialist technician can install a low coolant alarm on your vehicle.

The perfect sensor for every vehicle

The coolant alarm is suited to a wide variety of vehicles but is especially useful for off-roading and demanding conditions. You can rest easy knowing if gradual or sudden coolant loss occurs, you'll know right away thanks to the inbuilt audible alarm and flashing light. Key benefits include cost-effective early warning against engine overheating, automatic device fault detection, and no issues causing stray currents. The device lets you know it's still working every time you start the car and is more reliable than a vehicle temperature gauge.

Key features include:

  • AC sensing to avoid corrosion
  • Buzzer to indicate if wiring has malfunctioned
  • Built-in anti-slosh delay
  • Output for external alarm and/or indicator

All Natrad radiators are backed by a nation-wide 3-year warranty supported by Adrad, Australia's leading radiator manufacturer and supplier.

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FAQs

  • What cars are suitable for the low coolant alarm?

    The low coolant level alarm kit is designed for use in any 12V or 24V vehicle system, making it highly versatile across different vehicle types. It is particularly beneficial for 4WDs, trucks, heavy-duty machinery, and off-road vehicles, as these tend to operate under extreme conditions that put additional strain on the cooling system.

  • Does the coolant alarm come with a warranty?

    Yes, the low coolant sensor comes with a 12-month manufacturer’s warranty, ensuring your product is built to last. This warranty covers manufacturing defects and faulty components, ensuring you receive a reliable and high-performing device.

    If you experience any issues with your low coolant level alarm kit, Natrad can assist with troubleshooting, replacement, or repair within the warranty period. Be sure to check the terms and conditions of the warranty to understand what is included, and always have your unit installed by a professional to maintain warranty eligibility.

  • How does the low coolant alarm work?

    The low coolant alarm continuously monitors the coolant level in your radiator or expansion tank. When the liquid level drops below a set threshold, the system triggers an audible alarm and/or flashing warning light, alerting the driver to potential coolant loss. This allows for immediate action to prevent engine overheating and damage. The device is more reliable than traditional temperature gauges, which may not detect coolant loss until the engine is already at risk.

  • Can I install the coolant alarm myself?

    Yes, the low coolant level alarm kit is designed for easy installation, with straightforward wiring instructions included. However, for optimal performance and warranty coverage, it is recommended that an experienced Natrad technician install the system. Professional installation ensures that the alarm is correctly positioned, securely wired, and fully tested before use.

  • Will the coolant alarm work with my vehicle’s existing cooling system?

    The low coolant alarm sensor is compatible with most standard and aftermarket cooling systems. Depending on the vehicle’s setup, it can be installed in radiators, overflow tanks, or coolant hoses. The system integrates seamlessly with 12V and 24V electrical systems, making it suitable for a wide range of vehicles, including cars, trucks, and industrial equipment. If you’re unsure whether your vehicle is compatible, consult a Natrad specialist for advice.

Contact Us

Need a low coolant alarm replacement or advice on installation? Speak to a Natrad specialist about sourcing the right part and checking your vehicle's cooling system for potential issues.

131 723

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