Product information: Name: forehead thermometer strip Material: PET Measuring temperature: 35°C-40°C Function: measuring the temperature of the human forehead Product features: 1. This product made of environmentally friendly composite material is non-toxic without side effects. 2. Reading is obvious, intuitive and convenient. 3. It can be bent freely. It does not break easily. 4. No mercury, no alcohol. 5. It has the advantages of environmental protection, science and practicality. 6. It can be reused. Information about liquid crystal color change thermometer: 1. Use liquid crystal printing technology to indicate the current temperature by color (green, blue, coffee). 2. It can measure body temperature, water temperature, air temperature, ambient temperature and various solid surface temperatures. 3. It is applicable to measure the temperature of clothes, homes, indoor places, car interiors, baths, baby bottles, wine bottles, beverages, refrigerators, urine cups, meters, nasal wash devices and other items. 4. Measuring range can be customized: 0-60°C. 5. Temperature measurement accuracy: ± 0.5 °C. 6. It is suitable for the whole family thanks to the fast measurement and easy reading. Instructions for use: Forehead thermometer should be used at room temperature (21°C-23°C, 70°F-74°F). Please measure as follows: 1. Place the forehead thermometer strip in the middle of the forehead for 5-10 seconds. 2. Green scale indicates the normal body temperature. If the green scale is displayed, the body temperature is between the amber and blue scale. 3. Don't expose it to sunlight. If the liquid crystal display does not change color (shock) state, you can put the liquid crystal product in the refrigerator (putting in the freezing chamber is strictly prohibited) for 30 minutes to restore the color change effect. Warm tips: This liquid crystal thermometer shows the temperature index according to the heating temperature. Under normal circumstances, the body's forehead temperature will be 0.5 degrees Celsius lower than the normal body temperature. But because weather is different in each place and the environment is not the same, the body's forehead temperature will be different. Therefore, users must use it at normal room temperature. In addition, because the temperature in winter is relatively low and the temperature of the thermometer strip itself is low, the strip is heated slowly. Please increase the contact time for the strip and the forehead. Packing list: Thermometer strip * 2pcs