You can just buy off the shelf a ordinary lawn sprinkler controlled by a motion sensor. Though maybe the total amount of water might be undesirable on a balcony.
I found them quite effective at supplementing a fence to keep deer out of areas they shouldn't be in.
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You can just buy off the shelf a ordinary lawn sprinkler controlled by a motion sensor. Though maybe the total amount of water might be undesirable on a balcony.
I found them quite effective at supplementing a fence to keep deer out of areas they shouldn't be in.
Any particular motion sensor? Low voltage?
The ones I use and have seen use PIR, and are battery powered. The batteries last a long time esp. if it isn't triggered often.
The biggest limitation I've found is that it takes a bit of soldering iron adventure if you want to have a remote disable switch. :)