This product is a manhole cover safety monitoring equipment, which is installed at the bottom of the manhole cover to monitor the inclination and flooding of the manhole cover. It can also be used for wheat field monitoring. It is equipped with solar film for long-term basic power supply. The overall design is dumbbell-shaped. The appearance is easy to grasp, take and play (customer requirements). The style is simple and the technology has a little fashionable charm.
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