1

WATER LEVEL BUZZER

SR. QTY. REF. DESCRIPTION

1 1 BZ1 BUZZER

2 1 CN1 2 PCB PINS

3 1 C1 10uF/50V

4 1 C2 0.1uF

5 1 D1 RED LED

6 2 Q1,Q2 BC547

7 1 R1 100K

8 1 R2 5.6K

9 1 R3 4.7K

10 1 R4 1K

11 1 SN1 SENSOR PCB

12 1 WIRE 2 WIRES

WATER

SENSORPCB

R1

100K

R25.6K

Q2BC547

R34.7K

Q1BC547

SN1

12

CN1

6V

DC

C20.1uF

+C1

10uF

/50V

R41K

D1

RE

DL

ED

BZ1

BU

ZZ

ER

BLCK

RED

GND

+V

Water Level Buzzer is a simple circuit which will

buzz when water reaches the sensor level.

�Input supply - 9V DC @ 40mA

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