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Alarms/Buzzers（Volume adjustment：NA）
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Buzzer (round body type φ 16) M2BJ
OMRON
[Features]· A round body type with a length of 22 mm. Part of the ø16 series.· Available as a standard volume type (fixed 80 horns) or as a high volume type (variable 70 to 95 horns). Can produce both intermittent and continuous sound output.
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 80 Other Silique type Continuous / Intermittent Peak / Boost NA Solder terminal 24 Available - 18 28.5 From: 478,000 VND Days to Ship: Số ngày giao hàng: Same day or more 
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HANYOUNG NUX
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 80 ～ 85 DC24V / Other / AC110V / AC220V Round / Square shape Continuous - NA Screw terminal 45 ～ 80 NA - 50 ～ 74 45 ～ 80 From: 372,182 VND Days to Ship: Số ngày giao hàng: Same day or more
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IDEC
A small sized high performance electronic buzzer with ø16-size mounting holes.
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 75 DC12V / DC24V Round Continuous - NA Solder terminal 18 Available - 18 38.5 From: 709,205 VND Days to Ship: Số ngày giao hàng: Same day
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IDEC
[Features]· Use the built-in slide switches to select from continuous sound, intermittent sound (long), and intermittent sound (short).· Allows for close-contact mounting with LW series control units.· The buzzer drive unit can be easily removed, even when mounted in close-contact with other units.· A structure which uses a locking lever removal system to separate.· Round and square shaped bezels are available.· Dual solder tab terminals and PCB terminals are available.· Can be formed onto just one board.· Models with red LED displays that which emit a constant or flashing light in synchronization with the buzzer sound are also available.
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 80 Other Round / Square shape Continuous / Intermittent - NA Other 25.8 ～ 25.9 Available - 25.8 ～ 25.9 50.5 ～ 54 From: 996,446 VND Special Price Days to Ship: Số ngày giao hàng: Same day or more
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Buzzer Mount Hole Φ16, Φ22, Φ30
MISUMI
In addition to the standard type, an IP54 anti-splash type buzzer is available Mounting hole diameter: ⌀16·⌀22·⌀30
- Volume Discount
- UL
- CSA
- CE-Compliant
- TUV
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 80 ～ 90 DC24V Round / Silique type Continuous / Intermittent Peak NA Solder terminal / Screw terminal 18 ～ 41 NA CE / UL / TUV / CSA 24 ～ 41 52 ～ 68.5 From: 570,816 VND Days to Ship: Số ngày giao hàng: Same day or more
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PATLITE
Ultra compact electronic buzzer with 2 built-in tones. Ideal for embedding into equipment.[Features]· Two easily distinguishable built-in tones suitable for emergency alarms.· Compatible with NPN/PNP transistor open collectors, enabling direct drive on PLC, etc. (24 V specification).· Small and lightweight type product with a ø30 mm front surface, 42 mm depth and 100 g weight.· Dedicated embedded type product for indoors that can be mounted on panels with a thickness of 7 mm or less.· Drip-proof structure (IP34) enables use in factories with heavy moisture or powder dust as well as outdoors (BM-D type).· Operated using the ON/OFF switch on the power supply.· If there are 2 simultaneous input signals, Channel 1 is given priority (rapid, alternating two-tone sound).[Applications]· Embeddable into control panels and devices.
- CAD ：
- 2D
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 75 ～ 85 Other Square shape Continuous / Intermittent Voice/music / Other NA - 50 Available CE 50 64 From: 1,110,328 VND Days to Ship: Số ngày giao hàng: 4 Day(s) or more
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Industrial Machinery, Small Buzzer
KUNHUNG
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 90 Other Round Continuous / Intermittent - NA Tab Terminal 30 ～ 32 - - 30 ～ 32 40.7 From: 313,887 VND Days to Ship: Số ngày giao hàng: Same day or more
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HANYOUNG NUX
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 80 dB DC12~24V / AC100~240V Round / Square shape Continuous / Intermittent - NA Screw terminal 29.5 ～ 30 - - 67.3 ～ 83 37 ～ 40 From: 404,007 VND Days to Ship: Số ngày giao hàng: 4 Day(s) or more
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Control Unit Electromagnetic Buzzer
IDEC
[Features]· The EZ electromagnetic buzzer features a general explosion-proof structure.
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 90 Other Round Continuous - NA Screw terminal 50 - - 50 101 From: 1,904,751 VND Days to Ship: Số ngày giao hàng: 6 Day(s) or more
6 Day(s) or more
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HANYOUNG NUX
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 98 dB Max. DC12/24V / AC110/220V Square shape Continuous Voice/music NA Screw terminal 80 - - 74.1 80 From: 806,728 VND Days to Ship: Số ngày giao hàng: 4 Day(s)
4 Day(s)
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IDEC
Can be equipped in a single-action to the rear side of buzzers.[Features]· A small sized high performance electronic buzzer with a ø16 mounting hole.· Same terminal arrangement and size as IDEC AP series LED display lights (ø16).· The separately sold variable flicker unit can produce an intermittent alarm sound of approx. 30 to 600 beeps per minute.· The flicker unit mounts onto the rear of the buzzer unit in a single-action.
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) - Other Other Intermittent - NA Screw terminal 17.9 - - 17.9 58.6 From: 686,544 VND Days to Ship: Số ngày giao hàng: 6 Day(s) or more
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Industrial Machinery, Strong Buzzer
KUNHUNG
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 85 Other Square shape Continuous - NA - 80 - - 59 80 From: 434,528 VND Days to Ship: Số ngày giao hàng: 6 Day(s)
6 Day(s)
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ELD, ELR - Electronic Leakage Detection Alarm_Digital Type 16 Circuits
WOONYOUNG
[Features] ㆍ Use Warning LED to display status of electric wiring line and current leakage by each circuit ㆍ Display Texts on LCD of the front panel by checking both the electric leakage circuit and the status of ZCT disconnection ㆍ It is possible to set the electric leakage condition of electric wiring line using automatic return and manual return type ㆍ A self-test function is installed to check whether the warning alarm is abnormal or not ㆍ High accuracy for detecting electric leakage of short circuit ・Related Keywords: WOONYOUNG, Woonyoung Inc, Warning alarm, Buzzer
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 75dB/m more AC/DC110~220V Silique type - - NA - 137 - - 200 180.5 From: 8,997,505 VND Days to Ship: Số ngày giao hàng: 11 Day(s)
11 Day(s)
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ELD, ELR - Electronic Leakage Detection Alarm_Digital Type 6, 12 Circuits
WOONYOUNG
[Features] ㆍ Use Warning LED to display status of electric wiring line and current leakage by each circuit ㆍ Display Texts on LCD of the front panel by checking both the electric leakage circuit and the status of ZCT disconnection ㆍ It is possible to set the electric leakage condition of electric wiring line using automatic return and manual return type ㆍ A self-test function is installed to check whether the warning alarm is abnormal or not ㆍ High accuracy for detecting electric leakage of short circuit ・Related Keywords: WOONYOUNG, Woonyoung Inc, Warning alarm, Buzzer
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 75dB/m more AC110/220V Silique type - - NA - 137 - - 200 178 From: 9,127,609 VND Days to Ship: Số ngày giao hàng: 11 Day(s)
11 Day(s)
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IDEC
A vibration plate-type electromagnetic buzzer.[Features]· Both electronic (for DC24V) and electromagnetic types (for AC110V/AC220V) are available.· ANNZ electronic buzzer.· A solid state type with embedded electronic oscillator and speaker.· Delivers a crisp and clear mono-tonal sound (600 to 800Hz). Can be used as an alarm.· An AZ electromagnetic buzzer.· A vibration plate-type electromagnetic buzzer.· Can be mounted to the KGN and AGA control boxes from the manufacturer.
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 90 Other Round Continuous - NA Screw terminal 50 Available PSE 50 95.5 From: 1,622,427 VND Days to Ship: Số ngày giao hàng: Same day
Same day
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ELD, ELR - Electronic Leakage Detection Alarm_MICOM Type 6, 12 Circuits
WOONYOUNG
[Features] ㆍ Use Warning LED to display status of electric wiring line and current leakage by each circuit ㆍ Display Texts on LCD of the front panel by checking both the electric leakage circuit and the status of ZCT disconnection ㆍ It is possible to set the electric leakage condition of electric wiring line using automatic return and manual return type ㆍ A self-test function is installed to check whether the warning alarm is abnormal or not ㆍ High accuracy for detecting electric leakage of short circuit ・Related Keywords: WOONYOUNG, Woonyoung Inc, Warning alarm, Buzzer
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 75dB/m more AC/DC110~220V Silique type - - NA - 137 - - 200 178 From: 3,691,277 VND Days to Ship: Số ngày giao hàng: 11 Day(s)
11 Day(s)
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ELD, ELR - Electronic Leakage Detection Alarm_Analog Type 6, 8, 10, 12, 16 Circuits
WOONYOUNG
[Features] ㆍ Use Warning LED to display status of electric wiring line and current leakage by each circuit ㆍ Display Texts on LCD of the front panel by checking both the electric leakage circuit and the status of ZCT disconnection ㆍ It is possible to set the electric leakage condition of electric wiring line using automatic return and manual return type ㆍ A self-test function is installed to check whether the warning alarm is abnormal or not ㆍ High accuracy for detecting electric leakage of short circuit ・Related Keywords: WOONYOUNG, Woonyoung Inc, Warning alarm, Buzzer
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 75dB/m more AC/DC110~220V Silique type - - NA - 137 - - 200 - From: 3,541,961 VND Days to Ship: Số ngày giao hàng: 11 Day(s)
11 Day(s)
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ELD, ELR - Electronic Leakage Detection Alarm_Single Type 1, 2 Circuits
WOONYOUNG
[Features] • It consist of 2 types of one circuit and two circuits • Built-in circuit automatically detecting ZCT wiring disconnection status • Electric leakage state of Electric wire is displayed on warning alarm and LED • Short circuit and ZCT disconnection are displayed in the operating status • Electric leakage condition of the electric wire is composed by the manual return method • Installation of a self-test function to check whether there is an alarm problem or not ・Related Keywords: WOONYOUNG, Woonyoung Inc, Warning alarm, Buzzer
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) 75dB/m more AC110/220V Silique type - - NA - 57 ～ 70 - - 97 ～ 125 94 ～ 106 From: 1,422,336 VND Days to Ship: Số ngày giao hàng: 11 Day(s)
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MIRAI INDUSTRY
[Features]・ Two sensors protect the material from theft.(1) Catch the movement of the intruder with the infrared sensor.(2) Catch the shaking of materials with the vibration sensor.・ Alarm call and LED lamp threaten intruders.・ No wiring required. Dry cell battery type. Simple waterproof.
Volume(dB) Rated Voltage(V) Shape Sound Types of sound Volume adjustment Terminal shape Dimension width(mm) Protection function (IP/drip-proof, etc.) Representative Standard Dimension length(mm) Dimension thickness(mm) - - Round - - NA - - Available - 112.4 - From: 3,039,675 VND Days to Ship: Số ngày giao hàng: 12 Day(s)
12 Day(s)
| BrandNhãn hiệu |
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| Product SeriesDòng sản phẩm |
| CADCAD |
| From |
| Days to ShipSố ngày giao hàng |
| SpecificationsĐặc điểm kĩ thuật |
| Volume(dB) |
| Rated Voltage(V) |
| Shape |
| Sound |
| Types of sound |
| Volume adjustment |
| Terminal shape |
| Dimension width(mm) |
| Protection function (IP/drip-proof, etc.) |
| Representative Standard |
| Dimension length(mm) |
| Dimension thickness(mm) |
You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.            | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| BrandNhãn hiệu | OMRON | HANYOUNG NUX | IDEC | IDEC | MISUMI | PATLITE | KUNHUNG | HANYOUNG NUX | IDEC | HANYOUNG NUX | IDEC | KUNHUNG | WOONYOUNG | WOONYOUNG | IDEC | WOONYOUNG | WOONYOUNG | WOONYOUNG | MIRAI INDUSTRY |
| Product SeriesDòng sản phẩm | ELD, ELR - Electronic Leakage Detection Alarm_Digital Type 16 Circuits | ELD, ELR - Electronic Leakage Detection Alarm_Digital Type 6, 12 Circuits | ELD, ELR - Electronic Leakage Detection Alarm_MICOM Type 6, 12 Circuits | ELD, ELR - Electronic Leakage Detection Alarm_Analog Type 6, 8, 10, 12, 16 Circuits | ELD, ELR - Electronic Leakage Detection Alarm_Single Type 1, 2 Circuits | ||||||||||||||
| CADCAD |
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| From | 478,000 VND | 372,182 VND | 709,205 VND | 996,446 VND Special Price On Sale Till 31/03/2025 | 570,816 VND | 1,110,328 VND | 313,887 VND | 404,007 VND | 1,904,751 VND | 806,728 VND | 686,544 VND | 434,528 VND | 8,997,505 VND | 9,127,609 VND | 1,622,427 VND | 3,691,277 VND | 3,541,961 VND | 1,422,336 VND | 3,039,675 VND |
| Days to ShipSố ngày giao hàng | Same day or more | Same day or more | Same day | Same day or more | Same day or more | 4 Day(s) or more | Same day or more | 4 Day(s) or more | 6 Day(s) or more | 4 Day(s) | 6 Day(s) or more | 6 Day(s) | 11 Day(s) | 11 Day(s) | Same day | 11 Day(s) | 11 Day(s) | 11 Day(s) | 12 Day(s) |
| SpecificationsĐặc điểm kĩ thuật |
| ||||||||||||||||||
| Volume(dB) | 80 | 80 ～ 85 | 75 | 80 | 80 ～ 90 | 75 ～ 85 | 90 | 80 dB | 90 | 98 dB Max. | - | 85 | 75dB/m more | 75dB/m more | 90 | 75dB/m more | 75dB/m more | 75dB/m more | - |
| Rated Voltage(V) | Other | DC24V / Other / AC110V / AC220V | DC12V / DC24V | Other | DC24V | Other | Other | DC12~24V / AC100~240V | Other | DC12/24V / AC110/220V | Other | Other | AC/DC110~220V | AC110/220V | Other | AC/DC110~220V | AC/DC110~220V | AC110/220V | - |
| Shape | Silique type | Round / Square shape | Round | Round / Square shape | Round / Silique type | Square shape | Round | Round / Square shape | Round | Square shape | Other | Square shape | Silique type | Silique type | Round | Silique type | Silique type | Silique type | Round |
| Sound | Continuous / Intermittent | Continuous | Continuous | Continuous / Intermittent | Continuous / Intermittent | Continuous / Intermittent | Continuous / Intermittent | Continuous / Intermittent | Continuous | Continuous | Intermittent | Continuous | - | - | Continuous | - | - | - | - |
| Types of sound | Peak / Boost | - | - | - | Peak | Voice/music / Other | - | - | - | Voice/music | - | - | - | - | - | - | - | - | - |
| Volume adjustment | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| Terminal shape | Solder terminal | Screw terminal | Solder terminal | Other | Solder terminal / Screw terminal | - | Tab Terminal | Screw terminal | Screw terminal | Screw terminal | Screw terminal | - | - | - | Screw terminal | - | - | - | - |
| Dimension width(mm) | 24 | 45 ～ 80 | 18 | 25.8 ～ 25.9 | 18 ～ 41 | 50 | 30 ～ 32 | 29.5 ～ 30 | 50 | 80 | 17.9 | 80 | 137 | 137 | 50 | 137 | 137 | 57 ～ 70 | - |
| Protection function (IP/drip-proof, etc.) | Available | NA | Available | Available | NA | Available | - | - | - | - | - | - | - | - | Available | - | - | - | Available |
| Representative Standard | - | - | - | - | CE / UL / TUV / CSA | CE | - | - | - | - | - | - | - | - | PSE | - | - | - | - |
| Dimension length(mm) | 18 | 50 ～ 74 | 18 | 25.8 ～ 25.9 | 24 ～ 41 | 50 | 30 ～ 32 | 67.3 ～ 83 | 50 | 74.1 | 17.9 | 59 | 200 | 200 | 50 | 200 | 200 | 97 ～ 125 | 112.4 |
| Dimension thickness(mm) | 28.5 | 45 ～ 80 | 38.5 | 50.5 ～ 54 | 52 ～ 68.5 | 64 | 40.7 | 37 ～ 40 | 101 | 80 | 58.6 | 80 | 180.5 | 178 | 95.5 | 178 | - | 94 ～ 106 | - |
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ConfigureTạo
Specification/DimensionsĐặc điểm kỹ thuật / Kích thướcĐặc điểm kỹ thuật / Kích thước
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Volume(dB)
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Rated Voltage(V)
- DC12V
- DC24V
- Other
- AC110V
- DC12/24V
- DC12~24V
- AC110/220V
- AC100~240V
- AC220V
- AC/DC110~220V
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Shape
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Round
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Silique type
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Square shape
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Other
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Round
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Sound
- Continuous
- Intermittent
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Types of sound
- Peak
- Boost
- Voice/music
- Other
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Volume adjustment
- Available
- NA
-
Terminal shape
- Solder terminal
- Tab Terminal
- Screw terminal
- Other
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Dimension width(mm)
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Protection function (IP/drip-proof, etc.)
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Representative Standard
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Dimension length(mm)
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Dimension thickness(mm)
Related Categories to Alarms/BuzzersDanh mục liên quan đến Alarms/Buzzers
FAQ Alarms/Buzzers
- Question: How do buzzers function in electrical circuits?
- Answer: Electromagnetic buzzers use an electromagnetic coil to generate a magnetic field. This field attracts a movable diaphragm, causing mechanical vibrations. As the diaphragm moves back and forth, it produces sound waves, resulting in the audible buzzing or beeping sound. Connected to an electrical circuit, the buzzer is activated when current flows through the coil. It's important to note that there are different types of buzzers, including electromagnetic, piezoelectric, and magnetic-transducer buzzers. Each type operates on different principles
- Question: What are the typical uses of buzzers in various industries?
- Answer: Buzzers are widely used in various industries for signaling and alerting. Here are some typical uses of buzzers in different industries such as:
1. Automotive industries: In vehicles, buzzers are employed for warning signals, such as seatbelt reminders, and low fuel indicators.
2. Medical Industries: Medical devices use buzzers for alarms and notifications, such as indicating the end of a medical procedure or alerting healthcare professionals to specific conditions.
3. Industrial Automation: Buzzers are used in manufacturing and industrial settings to signal the completion of processes, indicate faults, or alert operators to specific events.
4. Security Systems Industries: Alarm systems and security devices use buzzers to produce loud alerts in the event of a breach, fire, or other security concerns. - Question: What differentiates piezo buzzers from electromagnetic buzzers?
- Answer:
This table summarizes the key differences between piezo buzzers and electromagnetic buzzers in terms of their operating principles, mechanisms, sound frequency ranges, efficiency, size, and common applications.
Feature Piezo Buzzers Electromagnetic Buzzers Operating Principle Crystal deformation Diaphragm driven by electromagnet Mechanism Crystal vibrations directly produce sound Diaphragm or armature physically moves to create sound Sound Frequency Range Narrow, often in ultrasonic or audible range Broader range, capable of various frequencies Efficiency High efficiency, fast response time Variable efficiency, may have slower response time Size and Weight Generally smaller and lighter Tends to be larger and heavier Applications Compact designs, low power, high-frequency Various applications, broader frequency requirements - Question: What factors determine the loudness of a buzzer?
- Answer: 1. Power Input: Higher electrical power results in increased loudness.
2. Design and Construction: Physical characteristics impact efficiency.
3. Resonance Frequency: Operating at resonant frequency maximizes loudness.
4. Voltage and Current: Increased levels within limits enhance sound output.
5. Environmental Conditions: Surrounding factors influence perceived loudness.
6. Transducer Efficiency: Efficient transducers produce more sound.
7. Sound Output Mechanism: Different mechanisms impact loudness.
8. Duty Cycle: Continuous operation may enhance perceived loudness.
9. Frequency Range: Some frequencies are more noticeable or louder than others. - Question: Can buzzers be considered a form of sound energy?
- Answer: Yes, buzzers can be considered a form of sound energy. Sound energy is a type of mechanical wave that propagates through a medium, such as air, water, or solids. When a buzzer is activated, it typically produces vibrations that create compressions and rarefactions in the surrounding air, generating sound waves. These sound waves carry energy in the form of vibrations, and when they reach our ears, they are perceived as sound.
- Question: How do you integrate a buzzer into a security system?
- Answer: Incorporate a buzzer into a security system by linking it to a controller, such as Arduino or Raspberry Pi. Ensure proper power alignment, connect to a digital output pin, and code the buzzer to respond to security events like unauthorized access detected by sensors.Thoroughly test and calibrate the system, considering backup power.
- Question: How do you choose the appropriate buzzer size and sound level for different environments?
- Answer: Select a buzzer size based on space constraints and application requirements. For quiet environments, opt for smaller, less powerful buzzers to minimize disturbance. In noisy settings, choose larger buzzers with higher sound levels for better audibility. Consider dB ratings to match ambient noise levels; quieter environments need lower dB, while louder surroundings require higher dB ratings. Always test in the specific environment to ensure the chosen buzzer meets the desired sound level without being excessively disruptive or inadequate for the given conditions.
- Question: What are the main considerations when connecting a buzzer to a digital circuit, such as an Arduino or Raspberry Pi?
- Answer: When buzzing with digital circuits, remember these key points:
1. Buzzer type: Choose between active (amplified, needs only digital signal) or passive (requires driver circuit).
2. Voltage and current: Match buzzer specs to your board's capabilities (e.g., 5V for Arduino). Calculate current draw and ensure sufficient power supply.
3. Driving the buzzer: Use a transistor or driver IC for passive buzzers or high current needs. Connect active buzzer directly to a digital pin.
4. Pulse frequency: Control sound pitch and pattern by varying the frequency of the digital signal driving the buzzer (typically 200Hz to 5kHz).
5. Protection: Add a flyback diode across the buzzer to absorb reverse voltage spikes generated when switching it off.
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