noun
automatic faucet; hands-free tap
Refers to a faucet that turns on and off automatically, typically using a sensor, without manual operation.
このトイレには自動水栓が設置されている。
This restroom is equipped with automatic faucets.
自動水栓は手をかざすだけで水が出
With an automatic faucet, water comes out just by holding your hand under it.