Liquid contact indicator

indicator in the form of a sticker that changes color after contact with liquids

en-US/ˈlɪkwəd ˈkɑnˌtækt ˈɪndəˌkeɪtɚ/
en-GB/ˈlɪkwɪd ˈkɒntækt ˈɪndɪˌkeɪtə/

دسته بندی ها:

chemical indicator