Ajantha College and School Students Science Projects materials The Great in project

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Buzzer

A buzzer or beeper is an audio signalling device,[1] which may be mechanical, electromechanical, or piezoelectric. Typical uses of buzzers and beepers include alarm devices, timers and confirmation of user input such as a mouse click or keystroke.

Early devices were based on an electromechanical system identical to an electric bell without the metal gong. Similarly, a relay may be connected to interrupt its own actuating current, causing the contacts to buzz. Often these units were anchored to a wall or ceiling to use it as a sounding board. The word "buzzer" comes from the rasping noise that electromechanical buzzers made.

Continous Ton Buzzer 3-24V DC

20CTW-Buzzer

Continous Tone PCB Mtg. Buzzer 3-24V DC

169-Buzzer

Continous Tone Buzzer 27CTS DC

27CTS-Buzzer

Continous Tone Buzzer 3-24V DC

169-Buzzer

Continous Tone Buzzer 3-24V DC

3-24V DC-Buzzer

Intermittent Tone Buzzer 3-24V DC

Intermittent Tone Buzzer 3-24V DC-Buzzer

Musical Tone Buzzer 3-24V DC

Musical Tone Buzzer 3-24V DC-Buzzer

Continous Tone Buzzer 3-24V DC

Continous Tone Buzzer 3-24V DC-Buzzer

Continous Tone Buzzer 3-24V AC/DC

Continous Tone Buzzer 3-24V AC/DC-Buzzer

Continous Tone Buzzer 230 V 230V

Continous Tone Buzzer 230 V 230V-Buzzer

Intermittent Tone Buzzer 3-24V DC

Intermittent Tone Buzzer 3-24V DC-Buzzer

Musical Buzzer 3-24V DC

Musical Buzzer 3-24V DC-Buzzer

Musical Tune Buzzer for Lifts [24V AC/DC]

Musical Tune Buzzer for Lifts [24V AC/DC]-Buzzer

Dual Tone Buzzer 3-24V DC

Dual Tone Buzzer 3-24V DC-Buzzer

Beeper Tone Buzzer 3-24V DC

Beeper Tone Buzzer 3-24V DC-Buzzer

Ringer Tone for Telephone [in parallel]

Ringer Tone for Telephone [in parallel]-Buzzer

Intermittent Tone - 230V for trigger [5Sec]

Intermittent Tone - 230V | Info 230V only for trigger [5Sec] -Buzzer

Musical Tone 230V

Musical Tone 230V-Buzzer

10mm CT Buzzer 1.5V

10mm CT Buzzer 1.5V-Buzzer

10mm Buzzer 5V

10mm Buzzer 5V-Buzzer

10mm Intermittent Buzzer 5V

10mm Intermittent Buzzer 5V-Buzzer

14mm Pizzo Buzzer 5V

14mm Pizzo Buzzer 5V-Buzzer

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