Water tank water level alarm circuit
Source: InternetPublisher:国民男神经 Updated: 2020/04/03
![水箱水位报警电路](http://www.eeworld.com.cn/circuit/upload/538a1bc8a409ff500dc8e0cb6c6d7ecb/b1a7f6e4-3c63-11ec-a73b-086126841eb8.gif)
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