... , the original color (red, yellow,green) will becoming clear, when temperature below 70°C, itwill change back to original color (red, yellow ... , green)Show the temperature and at the same ... 2406-9327Metal corrosion ACold bend ≥0.5Density 1.22g/cmcolor change at 70°C, indoorColor: red, yellow, greenSize: 0.4mm×25mm ...