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James has a water level sensor to detect both low and high level of water in tank. When it detects water in low level, he will switch on the water pump. When it detects water in high level, he will switch off the water pump.
Now He wonders if there is some kind of rf remote control set to make things easier. The set includes remote transmitter and receiver. Supposing the remote transmitter is wired to the water level sensor and the receiver wired to the water pump motor. When the water level sensor detects low water level, the transmitter will send a signal to the receiver. After the receiver receive the signal, the water pump will be switched on automatically. Likewise, when the water level sensor detects high water level, the water pump will be switched off automatically. So he no longer has to switch water pump on and off by hand.
He comes to ask us and we tell him that we have this kind of rf remote control set. According to his requirement, we select model 0020522 (S1L-DC12-ANT2+CB-2N) for him.
Wiring is showed as follow:
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