220V Liquid Water Level Sensor 4-leaf Antenna Detect the heartbeat module KY-039 MEC7016-M2-16
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Description
220V Liquid Water Level Sensor 4 leaf Antenna Detect the heartbeat module KY 039 MEC7016 M2 16 Detect the heartbeat module KY 039 GND GNDSIMR SIM900A RXD TTL level Use them with hydroponics A float switch is a device used to sense the level of liquid within a tank
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