MC-BJT-301 collapse meter is suitable for monitoring geological disasters such as rock collapse, ground cracks, wall cracks, etc. The product adopts a wireless integrated design, which integrates sensor and data collecting of both inclination and displacement of rope. It adopts solar panels for power supply. Built-in lithium batteries are adopted to ensure the equipment power supply. Also equipment installation cost is greatly reduced. The communication method can be chosen according to on-site situation. It can adopt the wireless Lora+ relay method, or the full Netcom communication method, in order to ensure the stable remote transmission of data to the server.