Usage: XT37 sensor tape is matched with type 37 and 42, which is widely used in energy-saving roller windows of Europe. Since the government's advocating of energy-saving and emission reduction, the using of roller windows in families and office blocks are greatly increasing. The damage to people and windows often happened when we forgot to remove the goods under the windows or doors. But , any type of sensor tape of Xiangtong will send the rebound instruction to controller acurately, thus guarantee people's comfort and security when the electric roller doors or windows is operated