Floor Water Sensor for Flood and Leak Detection (6 ft);

Level Sense LS2600 Surface Liquid Sensor connects to an control device accepting a switch type contact. When water or other liquid makes contact on the metal sensing tabs, the sensor will short across the liquid providing a closed signal across the wires. When no water is being detected the wires will provide and open signal. The sensor is great for protecting computer and telephone room sub-floors, water storage tanks, water heater piping, bathrooms, laundry rooms, air conditioners, and refrigerator drip pans. Use only with non flammable liquids. Not for confined spaces.
*Size: L64*W15.6*H12.7mm
*Housing: ABS, white
*Working Voltage: 5Vdc-12Vdc
*Max. Voltage: 24Vdc
*Max. Working Current: 0.5A
*Temperature: -10℃ ~ +65℃
*Cored cable 6 feet
*red wire to Positive,
*white wire to Negative (ground)
*Output: NPN type
Perfect for Arduio, Rasberry Pi, and home electronics projects.


Application Notes (based on Feedback of users with problems):
There are no electronics inside this device. It does not provide a "contact closure". It is two stainless steel coated feet, connected to conductors in a plasticized sealed coating to provide corrosion a protected environment where the wires connect to the stainless steel feet.

When the unit detects water, it operates as a resistor between 0.6M ohms and 1.4M ohms (i.e. the resistance of the water its detecting). In some applications it can be directly applied but generally speaking needs to be connected to a circuit that will sense the difference between 0V and the output voltage.