I bought the recommended Orbit weatherproof unit and have a question about it. I am in New Zealand and we are 240 volts and 50 Hz. Now I have received it I see it has a 110 volt GFCI power plug. I was wondering whether it is safe to wire this up to 240 volts.
NO, the AC adapter we sell should only be used with 110~120V powerline voltage. If your powerline voltage is 240V, you must use a step down converter to convert the powerline voltage down to 110V. Alternatively, you can purchase a 24VAC adapter locally in Australia, which will meet the powerline standard. If you already have an existing sprinkler controller and it has a 24VAC transformer, you can reuse it.