Coolant tester - glucometer G02760: Professional frost protection
Prepare your vehicle for unpredictable winter conditions and avoid catastrophic and extremely expensive engine damage. The Coolant Tester - Glycometer (SKU: G02760) is an indispensable, affordable and extremely accurate tool, suitable for both home garages and professional car repair shops. This simple but highly effective measuring device allows you to accurately determine the freezing point of the antifreeze in your car in just a few seconds and take timely action before the first frost arrives.
Insufficient glycol concentration in the cooling system can cause fluid flow blockage, burst pipes, water pump failure or even an irreparable crack in the engine block. By using this quality glycol meter, you will always be completely sure whether your coolant is ready for the lowest winter temperatures and whether it provides optimal protection for your steel horse.
Key benefits of using the G02760 glucometer
Regular maintenance and checking of key vehicle fluids is the foundation for a long engine life. Below are the main benefits of this handy tester:

Preventing extremely expensive breakdowns: Determine in time whether the antifreeze concentration is too low and avoid cracking the engine block or radiator before the first frost.
Exceptional measurement accuracy: The clear, transparent and contrasting measuring scale allows for quick and completely easy reading of values without the need for complicated calibrations.
Easy to use according to the pipette principle: It works on the mechanical principle of suction - you simply suck the liquid into the measuring chamber and immediately read the result on the scale.
Universal Compatibility: The device is adapted to test most standard ethylene glycol-based coolants used in modern and older vehicles.
Compact and extremely durable design: It is made of high-quality and resistant materials that ensure a long service life and resistance to impacts and chemicals in a demanding workshop environment.

Technical specifications and product features
This hand-held coolant tester features precise technical specifications that are adapted to demanding winter conditions and regular use:

Temperature measurement range: from -12 °C to -43 °C (or from +10 °F to -45 °F)
Product code (SKU): G02760
Category: Multimeters and other measuring devices
Price range: Excellent value for money (only €9.99)
Easy maintenance: Cleaning with plain warm water after each use ensures years of trouble-free operation.

Instructions for use: How to measure the freezing point correctly?
To ensure maximum safety and complete measurement accuracy when working with your glucometer, follow these steps consistently:

Safety first: Only perform measurements when the engine is switched off and completely cold. This prevents dangerous burns from pressure and hot steam in the cooling system.
System preparation: Carefully unscrew the radiator cap or expansion tank and insert the tester's flexible suction hose directly into the coolant.
Collecting a liquid sample: Hold the tester in a vertical (upright) position. Squeeze the rubber bulb (flask) at the top of the tester and slowly draw the liquid until it reaches the marked "liquid level" line.
Reading the value: Wait a few seconds for the pointer inside the chamber to completely settle, then read the measured value on the temperature scale.
Cleaning and Storage: After the procedure is complete, safely empty the sucked-in liquid back into the system. Then wash the tester thoroughly with clean warm water to remove all glycol residue and prevent deposits from building up on the pointer.

Why is regular coolant testing crucial?
Coolant gradually loses its original chemical properties over years of use and mileage. Anti-corrosion additives that protect the engine interior from rusting weaken, and the glycol concentration can be greatly reduced by frequent topping up with plain water. If there is too much water in the system, the liquid will freeze at just a few degrees below zero.
When water freezes, its volume expands, creating tremendous pressure in a closed system. This leads to a burst radiator, destruction of pipes, or even irreparable damage to the engine block, which means thousands of euros in repair or engine replacement costs. By purchasing this affordable tester (glucometer), you will perform a quick preventive check yourself in just a few minutes, which will ensure you sleep peacefully throughout the winter.
Frequently Asked Questions (FAQ) about the product

How often should I check my coolant with a glucometer?
It is recommended to check the condition and freezing point of the coolant at least once a year, preferably in the fall before the onset of low temperatures. It is also essential to perform measurements after each addition of water or concentrate to the cooling system to verify the final mixture.
Why do I have to test the fluid only when the engine is cold?
When the engine is at operating temperature, the cooling system is under high pressure. Opening the expansion tank cap in this state can cause a sudden burst of boiling liquid and steam, causing severe burns. In addition, the physical properties and measurements are most stable and accurate when the liquid is cold.
How do I clean and maintain the tester after use?
Maintenance is extremely easy. After completing the measurement, rinse the tester several times with clean warm water by sucking it in and squeezing it out through the tube. This will remove any sticky glycol residue that could affect the pointer's movement during subsequent measurements. Then let the device air dry.




Responsible persons:
GEKO - GEKO SPÓŁKA Z OGRANICZNĄ ODPOWIEDZIALNOŚCIA SPÓŁKA KOMANDYTOWA, ul. Spacerowa 3, 97-500 Kietlin, Poland, (+48) 446824004, geko@geko.pl
Distributor for Slovenia: Haloorodje.si, Online Sales, Rok Groznik sp, Podturn 42, 8350 Dolenjske Toplice, info@haloorodje.si, +38669731944, Slovenia
Product origin: China

Instructions for using the product:
• Remove a small amount of coolant from the cooling system.
• Fill or immerse the tester in liquid according to the product design.
• Wait for the measurement to stabilize.
• Read the result on the measuring scale.
• Clean and dry the tester after use.

Useful tips for work:
• Allows checking coolant concentration and antifreeze protection.
• Take the measurement when the coolant is cooled.
• For a more accurate result, use clean and uncontaminated liquid.
• Compare the result with the recommended concentration for your vehicle.

Warnings:
• Never open a hot cooling system – risk of burns.
• Coolant can be harmful – use protective gloves and goggles.
• Avoid contact of the liquid with skin and eyes.
• Do not leave spilled liquids in the environment.
• Use the tester only for its intended purpose.

Same summary

Coolant tester - glucometer is a basic but indispensable device for anyone who wants to check the protective level of coolant in a vehicle or home appliances themselves. It makes the most sense for users who need quick and practical control over the quality of the coolant mixture, but not for more demanding analyses or professional servicing. With this model, it is worth paying attention to single-purpose use - it is mainly suitable only for testing the composition of liquids, where glycol plays a key role.

Recommendation source: Enaa guides and team experiences.

User view

A typical user of a glucometer is a car driver or a handyman who makes sure that the cooling system in the engine or heater works optimally all year round. In practice, it comes in handy for routine checks of protection against freezing or overheating, without the need for service visits. The tool is easy to use and does not require special technical knowledge.

Users also appreciate the tradition and variety of Geko brand tools, as the reliability of the equipment is important for any work in the home garage or workshop.

Why buy at Enaa

In addition to the easy selection option based on category and technical requirements, expert support is also available for additional questions. Easy purchase at Enaa provides quick access to proven products for home and hobby users, while ensuring a clear presentation of the key advantages of tools and detectors.

Answers to frequently asked questions

How often is it recommended to test coolant with a glucometer?

It is recommended to check the coolant before winter and summer, or after every long trip, to ensure optimal engine protection.

Can I use this tester for other fluids, such as brakes or cleaners?

No, the glucometer is intended exclusively for testing coolant containing glycol. Use with other fluids does not give reliable results.

Is using a glucometer difficult?

No, it's simple to use: you use the device to collect a small amount of coolant and check the result on the display.

What to do if the measured result is at the limit of recommended protection?

In this case, it is recommended to add an appropriate coolant or mixture to ensure adequate protection of the system against freezing or overheating.

How do I clean my glucometer after use?

After each test, thoroughly rinse all parts of the glucometer with clean water to prevent liquid residue from drying out and extend the life of the device.

Description updated: April 2026