Data cable and WIFI module need to be purchased separately

Care and maintenanceIn order to maintain the best long-term performance, it is recommended to check the following items twice a year1 Make sure that the airflow around the controller is not blocked, and remove any dirt or debris on the radiator2 Check whether the insulation of all exposed wires is damaged due to sunlight, friction with other surrounding objects, dry decay, insect or rodent damage, etc. Need to repair or replace the wire3 Verify that the display LCD is consistent with the operation of the device. Please pay attention to people and faults or error display and take corrective measures if necessary4 Check all the wiring terminals to see if there are signs of corrosion, insulation damage, high temperature or burning/discoloration, and tighten the terminal screws.5 Check for dirt, nesting insects and corrosion, and clean up as required.6 Check for dirt, nesting insects and corrosion, and clean up as required,7 If the lightning arrester has failed, replace the failed arrester in time to prevent lightning damage to the controller and even other user equipment