Water level Indicator circuit diagram using BC547✅✅✅

‘’welcome’’ friends how to do ease learning electrical and electronic to join our channel ,subscribe my channel and thanks for watching video”. Equepment: • BC547 transistors-Q1,Q2,Q3,Q4,Q5 • Resistors R1,R2,R3,R4 R5, R6 ,R7,R8 -330ohms • Led – Red(LED2) , Green(LED2) • Contacts Wire – M1,M2,M3,M4. • Buzzer 4-12v • Power supply 9V DC.