Make Water Level Indicator Alarm with Buzzer | DIY 12th Science Project Working Model for Exhibition

Hello everyone, Here I am going to show that, How to Make a Water Tank Overflow Alarm Working Model for School Science Project. I have Included Step by Step Tutorials for Making This Water Level Project for Science Exhibition/Fair.

Required Materials:
1. Cardboard
2. BC547 Transistors x 5
3. 5 MM High Bright LED in Red, Blue, Green, White, Yellow Colours
4. Wires.
5. 33ohm Resistors x 5
6. DC Buzzer
7. 9V Battery & Connector
8. Switch
9. Plastic Straws
10. Spray Paint
11. Ribbon Wire.
12. Used LED Tube Light
13. Aluminum Foil Sheet.
14. Jumbo Popsicle Stick
15. Plastic Container

Circuits Link:
Cardboard Battery Diagram Measurements:
https://drive.google.com/file/d/1sZ3Y...
Water Level Indicator with buzzer Full Circuit:
https://drive.google.com/file/d/1FnSI...

Other Science Project Working Model Ideas:
1. How to Make Traffic Signal Lights from Cardboard
   • How to Make Traffic Signal Lights fro...  

2. How to Make a Matchbox Long Train Toy at Home
   • How to Make a Matchbox Long Train Toy...  

3. How to Make a Matchbox Tractor with Trolley at Home
   • How to Make a Matchbox Tractor with T...  

4. How to Make Airplane with DC Motor at Home
   • How to Make Airplane with DC Motor at...  

5. CAR that Can Goes All The Directions:
   • GENIUS Innovation! CAR that Can Goes ...