JNXIJ Coolant Tester Accessory, Dial Type Antifreeze Coolant Hydrometer for Freezing Point Testing, High Accuracy Car Battery Liquid Densitometer Antifreeze Tester for Ethylene Glycol

Critical Function: This antifreeze coolant tester measures the freezing point and concentration of coolant, reflecting the current status of the vehicle's cooling system. Based on the measurement results, you can easily judge whether the coolant is still effective or needs to be replenished or replaced

Accurate Measurement: This tester features °F and °C scales and can provide coolant freezing point readings ranging from -43°C to -12°C (-45°F to 10°F). The dial is laid out reasonably and is combined with a highly transparent shell, allowing you to accurately observe the measurement results

Reliable Material: This coolant tester is made of PC material, which is highly durable and impact-resistant, ensuring that it will not crack even after long-term use. In addition, the airbag and pipe parts are made of silicone, which is flexible and can be bent repeatedly

Easy to Operate: First, squeeze the airbag to remove all air. Next, place the tube in the coolant and draw the liquid into the tester. Then, hold the tester vertically and wait a few seconds for the red floating pointer to align with the center line. Finally, observe the pointer and read the data

Ideal Size: The body dimensions of this antifreeze coolant tester are 3.9 × 1.8 × 0.7 inches. The silicone hose of the tester is 5.31 inches in length and 0.43 inches in diameter. The size makes it convenient to carry and store, but it won't take up too much storage space