Small SquareWater Sensitive Sticker Turn Red When Got Wet Device Potential Damage Indicator Warranty Void Warning Label Repair Guanantee

Material: water sensitive paper, white color, turn red/blue when contact water, and never fade. Purpose: water exposure indicator for packages or devices, if you see the label is red, potential damage may occured. Usually it shows that repair guanantee invalid. How to use: Usually this water exposure sensor stick to the inside of goods, such as mobile phone, tablet, laptop, or other electronics devices etc..syi