1.30249.0220000 Allicdata Electronics
Allicdata Part #:

1.30249.0220000-ND

Manufacturer Part#:

1.30249.0220000

Price: $ 37.83
Product Category:

Audio Products

Manufacturer: RAFI USA
Short Description: RAFIX 22 QR BUZZER
More Detail: Buzzers 12V 25mA 2.75kHz 70dB @ 12V, 100cm Panel...
DataSheet: 1.30249.0220000 datasheet1.30249.0220000 Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
2 +: $ 34.38230
Stock 1000Can Ship Immediately
$ 37.83
Specifications
Series: RAFIX 22 QR
Part Status: Active
Lead Free Status / RoHS Status: --
Driver Circuitry: --
Input Type: DC
Voltage - Rated: 12V
Voltage Range: --
Frequency: 2.75kHz
Technology: --
Operating Mode: Pulse
Duration: --
Sound Pressure Level (SPL): 70dB @ 12V, 100cm
Current - Supply: 25mA
Port Location: Side
Operating Temperature: --
Approvals: --
Ratings: --
Ingress Protection: IP65
Mounting Type: Panel Mount
Termination: Solder Pads
Size / Dimension: 0.878" Dia (22.30mm)
Height - Seated (Max): 0.949" (24.10mm)
Description

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Alarms, buzzers, and sirens play an important role in security systems, providing an audible alert in emergency situations such as fires, floods, or intrusions. This article will discuss the different kinds of alarms, buzzers, and sirens available, as well as their application fields and working principles.

Different types of alarms, buzzers, and sirens

Alarms, buzzers, and sirens come in a variety of different forms, each with its own unique advantages and applications. Some of the most common types of alarms, buzzers, and sirens include:

  • Strobe Alarms: Strobe alarms are designed to produce a flashing visual signal to accompany the audible sound produced by other alarms or buzzers. They can be powered either by battery or by mains electricity and are usually used in environments where visual cues may be more effective than an audible alert.
  • Vibrating Alarms: Vibrating alarms use a vibrating motor to produce a shaking sensation when activated. This type of alarm is usually used in environments where audible alarms may not be heard, such as in noisy factories or construction sites.
  • Loud Alarms: Loud alarms are used in environments where a powerful, high-pitched alarm sound is needed to alert people of a danger. These types of alarms are often used in places where lower-pitched alarms are not heard, such as factories or places of entertainment.
  • Bells and Buzzers: Bells and buzzers are simple analog devices that produce a continuous, low-pitched ringing sound or a pulsing buzz. They are typically used in environments where a quick, attention-grabbing sound is needed to alert people of a danger.

Application fields and working principles

Alarms, buzzers, and sirens are used in a variety of different contexts and can be used for both commercial and residential applications. Some of the most common uses for alarms, buzzers, and sirens include:

  • Security Systems: Alarms, buzzers, and sirens are commonly used in security systems to alert or scare off intruders. These devices are usually linked to a control panel or a mobile application, allowing users to remotely control the alarm from anywhere.
  • Fire Detection: Fire alarm systems use alarms, buzzers, and sirens to warn people of a fire and alert the authorities. These systems are typically powered by a central control unit and can be integrated into existing fire detection systems.
  • Emergency Broadcasting: Alarms, buzzers, and sirens are commonly used in public address systems to broadcast important messages during emergencies. They are typically linked to a timer or manual control switch and can be programmed to broadcast pre-recorded messages or texts.

Alarms, buzzers, and sirens all operate on similar principles. When triggered, an electrical current is sent to a transducer, which converts the current into sound or vibration. The sound or vibration produced depends on the type of alarm, buzzer, or siren being used. Strobe alarms, for example, produce a flashing light, while vibrating alarms produce a shaking sensation.

Conclusion

Alarms, buzzers, and sirens are essential components in many different security systems, offering an audible and visual alert in emergency situations. This article has provided an overview of the different types of alarms, buzzers, and sirens available, as well as their application fields and working principles. With the right understanding and implementation, these devices can be used effectively to help ensure the safety of people and property.

The specific data is subject to PDF, and the above content is for reference

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