Water Level Indicator Circuit

Water Level Indicator Circuit Kit

If you are looking for a simplewater level indicator circuit, then you are interested to build it, this is the right choice. Only 16 components installed on a compact PCB. Even the water level indicator circuit is already available in a kit which you must assemble. In one complete package comes with a 9V battery and the snap for around $7.
Water level indicator kit involves three pieces of NPN transistor, 10 resistors, three pieces of each color LED red, green, and yellow, and with a single small PCB. You do not need an external DC power supply to operate, it has been available 9V battery snap. Next, you need to assemble and put it in a box to protect from outside conditions. It does not require any special skills to assemble, even very suitable for a beginner.

Water Level Indicator - Kit & Box

Water Level Indicator Circuit Diagram

The water level indicator kit is very simple designed to measure water level in a pool or tank by using LEDs to show the water level. Diagram of thewater level indicator circuitas here.

Water Level Indicator Circuit - 3 Level

Explanation of Water Level Indicator Circuit

• One probe goes into the water and is connected to the 9V positive rail through a 100 ohm resister.
• The other 3 probes connect to the base of each transistor through a 390 ohm resistor.
• When the current flows from the probe to the sense contact connected to the base of the transistor, the LED light will turn on.
• The tank water level indicator has 3 inputs, low, medium and high. (yellow, green, red).
• power supply 6-9 V.
• box for product FB03.
• 9V Battery Snap BS-IR.

NOTE:
Probes are not included. Probes can be made up of stainless steel screws connected to wires that run back to your circuit board or just wires in contact with the liquid.
WIRE:
The insulation should be stripped back 1/2″ to expose the conductor, then tin the conductor using appropriate solder.
From the description above is expected to outline the basic workings of a simple water level indicator. You can visit the site to obtain more information on thewater level indicator circuit.

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