| 摘要 |
Provided is an automatic faucet using a radio wave sensor, which is capable of preventing erroneous stop of water spouting, with a simple configuration. The automatic faucet (1) has a radio wave propagation space, a radio wave emitting port (27), and directivity setting device. The directivity setting device is configured to direct a radio wave being emitted from the radio wave emitting port (27), in such a manner that, during a water stopping state, the emitted radio wave lies along a spouting direction (A) along which washing water is to be spouted from a spout port (26), and, during a water spouting state, a part of the radio wave emitted disposed offset in a direction C, with respect to the spout port (26) interferes with a region of a peripheral surface of a stream (W) facing in the direction C.
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