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Simple Water Detection Sensor with Digital Output : ID 4965 : $1.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Sensaphone Contact Type Zone Water Detection Sensor - water sensor - FGD-0056 - Proximity Cards & Readers - CDW.com
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Water Leak Alarm, WIFI Water Detection Sensor APP Push Record Fit For Amazon Alexa Google Home, Can Be Installed in the Kitchen/Living Room/Toilet - Walmart.com
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12V DC Wired Water Detectors Water Leak Alarm Module Leakage Flood Sensor with 10A NC NO Relay Output Control, Turns Off Flood Source (White) - Amazon.com
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Water Level Sensor Liquid Water Droplet Depth Detection [Water Level Sensor] - US $1.50 : HAOYU Electronics : Make Engineers Job Easier
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FULenQnu LS43 Water Leak Detector Alarm System Automatic Shut-Off Valve and 2 Detection Sensors Connects Up to 8 Sensor to Prevent Flooding 34 NPT - Walmart.com
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