The NUSwans are being used by researchers in Singapore to monitor water conditions like pH, dissolved oxygen, turbidity and chlorophyll

The swans you might see floating around Singapore’s Pandan Reservoir are not what they seem. They’re not living birds but robots. And their purpose? Smart, efficient water testing.

According to Channel NewsAsia, the robot swans are a project from a team from the National University of Singapore (NUS) and the national water agency. The NUSwan monitors water conditions like pH, dissolved oxygen, turbidity and chlorophyll to determine whether there are problems with the water source.

Currently, researchers physically collect samples from a boat, a lengthy process that also makes it harder for officials to quickly respond to a contamination.

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