Electronic Sounders

Electronic sounders are audio signalling devices for use with intruder, fire alarm and industrial signalling systems.

How do electronic sounders work?

An electronic sounder is connected to an alarm circuit, forming an integral part of the system. At the heart of the circuit is a thermistor (temperature sensitive resistor) that will trigger the sounder in case of, say, a fire or smoke.

Electronic sounders will usually be mounted on a wall within open areas or passages and corridors. They are manufactured from tough housing material such as plastic, polycarbonate and stainless steel to provide high levels of durability and resistance to environmental conditions.

Most electronic sounders can be set to different frequencies and tones and are compatible with majority of emergency and fire signalling tones used throughout the world. A volume control inside the unit, when fitted, enables you to select the maximum sound output to suit the installed environment.

What are electronic sounders used for?

Electronic sounders are designed to meet a broad range of alarm applications where distinctive warnings must be given for emergencies such as fires.


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Description Price Supply Voltage IP Rating Decibels at 1 Metre Current Type Number Of Tones Housing Colour Mounting Style Diameter Application Type Minimum Decibel Maximum Decibel Series Base Length Base Width
RS Stock No. 2509677864
Mfr. Part No.SC628AR
HK$286.44
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RS Stock No. 2508358035
Mfr. Part No.BST0803SM-03-4T
BrandICC
HK$14.56
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RS Stock No. 2508575704
Mfr. Part No.BRT1615P-06-C
BrandICC
HK$23.66
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RS Stock No. 2508439207
Mfr. Part No.VSB110-2
HK$2,109.52
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RS Stock No. 2509677634
Mfr. Part No.SC628NDR
HK$287.14
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RS Stock No. 2508401139
Mfr. Part No.MSR516NR
HK$60.48
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RS Stock No. 2509677331
Mfr. Part No.SC250PR
HK$438.20
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RS Stock No. 2509677713
Mfr. Part No.SC110ER
HK$381.08
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RS Stock No. 2509677044
Mfr. Part No.SCE016XD3CTB
HK$277.34
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RS Stock No. 2508575849
Mfr. Part No.BRP2207P-30
BrandICC
HK$17.78
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RS Stock No. 2508575647
Mfr. Part No.BRT1615P-12
BrandICC
HK$13.44
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RS Stock No. 2508575401
Mfr. Part No.BRT1209PF-12
BrandICC
HK$7.32
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RS Stock No. 2508413047
Mfr. Part No.PT-1240PQ
HK$53.20
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RS Stock No. 2508575748
Mfr. Part No.BRP2212L-12-C
BrandICC
HK$22.12
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RS Stock No. 2509677678
Mfr. Part No.SNP428R
HK$159.96
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RS Stock No. 2508410032
Mfr. Part No.PK-20A25WQ
HK$42.84
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RS Stock No. 2509277029
Mfr. Part No.XB-09-301-S(F)
BrandFloyd bell
HK$356.30
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RS Stock No. 2508410048
Mfr. Part No.PK-20A35EWQ
HK$41.44
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RS Stock No. 2509677319
Mfr. Part No.SC648R
HK$171.08
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RS Stock No. 2508420663
Mfr. Part No.SC648ANPR
HK$409.50
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