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This water sensor works by having a series of exposed traces connected to ground and interlaced between the grounded traces are the sens traces. There is also a on-board potentiometer to adjust the sensitivity, you can get the amount of water induced contact between the grounded and sensor traces.With the comparator LM393, users can get both the ****og signal and digital signal.
The module will output HIGH/LOW(the signal indicate LED OFF/ON) when the tilt sensor is disconnected/connected. The default state of the tilt sensor is disconnected.
This seller has been a member since: Feb. 11, 2017
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