Auto openning and closing device of water-works valves

摘要

A first optical sensor, install the switch 1 and the second light sensor switch (1 ') in a separate location, do not have access to the same time both switches do sensor and switch it is not working hameuroseo controller which is controlled by sensors and switches ( by 2) it is one to adjust the opening and closing of the solenoid valve 3, 3 'for the water supply opening.