[Household use, etc. Widely used]: measuring engine, tires, electrical equipment, heating and cooling equipment, hot furnaces, etc., measuring the temperature of hot water and oil in life, cooking , refrigerator TV conditioner and other product temperatures [High Accuracy]: The object distance is 12:1, which can measure the over a long distance. High quality sensors can be used to complete measurements in less than 0.5 seconds. Measuring accuracy is +/-1.5% or +/-1.5°C, suitable for most everyday life. [ function]: Use the mode switch button to switch between MAX/MIN/AT//CAL mode, MAX: display the highest temperature during measurement, MIN: display the lowest temperature during measurement, AT: automatically display the current temperature , : Adjust tolerance (0.1~1), CAL: Temperature -calibration [Operation display]: LCD display with high stability and backlit display, which can display dark values; no need for switch, just the measurement button to operation