Introduction: HOW TO MAKE a WATER TANK ALARM

Connect all negative terminals of leds with each other like shown in the image and connect the resistor also.

Step 1:

Connect all negative terminals of leds with each other like shown in the image and connect the resistor also.

Step 2:

Connect the negative end of the battery with the resistor.

Step 3:

Connect a wire with the possitive end of the battery connector and leave the wire touching in the bottom of the tank so that the circuit will become complete.

Step 4:

Connect a wire with the possitive end of the battery connector and leave the wire touching in the bottom of the tank so that the circuit will become complete.
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