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Transformer / Valve
| In addition to the solid state relay, a 120v to 24v transformer will be used in order to activate the valve for the watering system of the greenhouse. This is a common device used in homes for doorbells. An electrically controlled 3/4" valve will be used in order to water the soil. This part of the circuit will be activated if a low level of relative humidity is detected within the greenhouse. |
3/4" Valve
figure 4