Dust-proof mesh

Dust-proof mesh has two main functions:
1) Grass mowing is usually done in summer, and the weather will be very hot. The controller in the control chamber will heat up soon after the lawn mowing operation. When the fan of the controller is working, it will blow the heat around. If there are hollows in the wall of the control chamber, The heat will escape faster.
2) Adding a dust-proof mesh to the hollow area can prevent grass clippings or more dust from entering the control compartment, which can greatly reduce failures and reduce the number of maintenance times.