the Remaining Gas Test Card of the Liquid Crystal Color Changing Gas Measuring Card

Product Features:

This product can accurately measure the volume of gas, including human forehead temperature, water temperature, air temperature, and various surface temperatures of solid objects. It is suitable for measuring the temperature of bottles, wine bottles, beverages, refrigerators, kettles, fish tanks, indoor, car, and bath water. The temperature range is -10°C to 120°C, and it can show different colors of blue, green, and brown. Green indicates the correct temperature, and it can be used for a long time.
This product utilizes the more advanced liquid crystal printing technology to indicate the current temperature by color (green). The reading is clear and intuitive, and it can be bent at will without breaking easily. It avoids the hazards of glass breaking and mercury poisoning caused by traditional thermometers, featuring safety, environmental protection, science, and practicality.