Smoke Alarms

Smoke alarms are an integral element in commercial and domestic safety. Able to detect fires and warn inhabitants, a smoke alarm is the most effective way to ensure fire safety and awareness in a way that doesn't rely on human detection.

The RS Components range of smoke alarms and fire detection equipment has dependable models from leading brands.

Ionization Smoke Detection

The most common form of smoke alarm are those that rely on ionization. With a special ionized sensor chamber, these alarms sound when smoke particles interrupt the air flow in that sensing chamber. Therefore, as soon as smoke particles get near the smoke alarm, it will sound. Though this makes them vulnerable to false alarms from every day kitchen activities, they remain one of the most effective tools in fire detection, and are believed to respond more swiftly to fast flaming fires than optical smoker detectors.

Optical Smoke Detection

Optical smoke detectors use a pulsing LED in a sensing chamber. When smoke enter this chamber the LED light is reflected and triggers the alarm. Optical smoke detectors are considered to react more swiftly to smouldering fires, and trigger fewer false alarms due to cooking smoke and bathroom steam than ionization versions.

Heat Detection

Some fire alarms rely on the detection of heat rather than smoke to identify fire. Heat detectors have a heat sensitive element that responds to either a 'rate-of-rise' in temperature, or to a fixed temperature. Rate-of-rise (ROR) detectors measure a sudden increase in temperature, but often also have a fixed temperature that they will respond to. As heat detectors don't rely on smoke, they are used in areas where air particles might interfere with a smoke detectors correct operation, such as kitchens or laundry rooms.

Battery or Hard-Wired Fire Detection System

Battery operated smoke alarms are very common and cost effective. Because they are independent from any wiring, they can be installed almost anywhere. Their primary disadvantage is that they may run out of battery, but most models will contain a low battery warning or a battery testing button, allowing you to make sure they are always in working order. Many manufacturer's recommend changing the batteries of a smoke alarm over a fixed schedule, such as every six months or one year, to ensure full confidence in their operation.

Hard-wired smoke alarms, are wired into the mains and are more common in commercial properties. They have the advantage of never running out of batteries, and though they rely on a mains power feed, they are equipped with battery backups in the event of a power cut.


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Beskrivning Pris Series Type Sound Level Connection Type Power Indicator Low Power Warning Signal Piezo Alarm Material Diameter Depth Operating Voltage
RS-artikelnummer 740-8066
Tillv. art.nr5TC1296
VarumärkeSiemens
464,95 kr
Each
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DELTA reflex Smoke Detector 85dB - - - - - - - 230 V, 9 V
RS-artikelnummer 524-5961
Tillv. art.nrRM1100
VarumärkeABUS
240,39 kr
Each
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- Heat Detector - - - - - PC 100mm 46 mm 12V dc
RS-artikelnummer 524-5898
Tillv. art.nrRM1000
VarumärkeABUS
377,47 kr
Each
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- Optical Smoke Detector - - - - - PC 98mm 46 mm 12V dc
Nytt
RS-artikelnummer 243-6407
Tillv. art.nrSH-WS03
VarumärkeDeltaco
350,53 kr
Each
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- Smoke Detector 85dB - - - - - - - -
RS-artikelnummer 123-5771
Tillv. art.nrFH450RB
492,92 kr
Each
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- Heat Detector - - Yes - - - - - -
RS-artikelnummer 123-5778
Tillv. art.nrFHB10W
703,84 kr
Each
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- Optical Smoke Detector - - Yes - - - - - -
RS-artikelnummer 123-5777
Tillv. art.nrFHH10
266,99 kr
Each
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- Heat Detector - - Yes - - - - - -
RS-artikelnummer 230-0837
Tillv. art.nrEFXN525
VarumärkeEaton
206,18 kr
Each
Enheter
Fulleon Heat Detector - Wired - - - - - - -
RS-artikelnummer 183-7311
Tillv. art.nr790MRL
VarumärkeBRK
628,79 kr
Each
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- Thermistor Smoke Detector 85dB - Yes Yes - - 140mm 68 mm 230V ac
RS-artikelnummer 230-0833
Tillv. art.nrEFBWOPTDET
VarumärkeEaton
221,41 kr
Each
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Fulleon Optical Detector - Wired Yes - - ABS, PC - - 15 → 35V dc
Nytt
RS-artikelnummer 248-9558
Tillv. art.nrS54320-F8-A3
VarumärkeSiemens
2 343,43 kr
Each
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OOH740 Smoke Detector - - No - - - - - -
RS-artikelnummer 230-0830
Tillv. art.nrEFBW5IN1DET
VarumärkeEaton
279,24 kr
Each
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Fulleon - - Wired Yes - - ABS, PC - - 15 → 30V dc
RS-artikelnummer 123-5769
Tillv. art.nrFH450BB
380,56 kr
Each
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- Heat Detector - - Yes - - - - - -
Nytt
RS-artikelnummer 248-9533
Tillv. art.nrS54310-F104-A1
VarumärkeSiemens
574,56 kr
Each
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HI Heat Detector - - No - - - - - -
RS-artikelnummer 230-0840
Tillv. art.nrEFXN632
VarumärkeEaton
227,37 kr
Each
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Fulleon - - Wired - - - - - - -
Nytt
RS-artikelnummer 248-9494
Tillv. art.nrA5Q00004439
VarumärkeSiemens
1 641,59 kr
Each
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FDB Heat Detector - Wired No - - - - - -
RS-artikelnummer 230-0838
Tillv. art.nrEFXN526
VarumärkeEaton
204,19 kr
Each
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Fulleon Heat Detector - Wired - - - - - - -
Nytt
RS-artikelnummer 248-9557
Tillv. art.nrS54320-F7-A3
VarumärkeSiemens
1 712,96 kr
Each
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OOH740 Smoke Detector - - No - - - - - -
Nytt
RS-artikelnummer 248-9531
Tillv. art.nrS54310-F101-A1
VarumärkeSiemens
624,52 kr
Each
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OP Optical Smoke Detector - - No - - - - - -
Nytt
RS-artikelnummer 248-9532
Tillv. art.nrS54310-F102-A1
VarumärkeSiemens
736,34 kr
Each
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OH Smoke Detector - - No - - - - - -