The DDM type fixed inclinometer is mainly applied in the safety monitoring of slopes, geological disasters, subways, buildings, river embankments, foundation pits, etc. This product is designed based on the requirements of the Internet of Things and can completely replace the traditional manual drag-and-drop inclinometer, meeting the needs of long-term continuous monitoring of deep displacement. The equipment can be reused, has high precision and good reliability, greatly reducing the work pressure on engineering and technical personnel. It has great application and promotion value and is widely praised by customers.