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 doesnt rely on human detection.The RS Components range of smoke alarms and fire detection equipment has dependable models from leading brands.Ionization Smoke DetectionThe 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 DetectionOptical 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 DetectionSome 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 dont 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 SystemBattery 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 manufacturers 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.

...
Read more Read less

Filter

Visar 1 - 20 av 35 produkter
Resultat per sida
Beskrivning Pris Series Type Sound Level Power Indicator Low Power Warning Signal Piezo Alarm Material Diameter Depth Operating Voltage
RS-artikelnummer 240-0553
Tillv. art.nr55000-317
VarumärkeApollo
728,25 kr
Each
Enheter
Series 65 Optical Smoke Detector - - - - - - - 9 33V dc
RS-artikelnummer 740-8066
Tillv. art.nr5TC1296
VarumärkeSiemens
384,65 kr
Each
Enheter
DELTA reflex Smoke Detector 85dB - - - - - - 9 V, 230 V
RS-artikelnummer 240-0581
Tillv. art.nr55000-122
VarumärkeApollo
365,73 kr
Each
Enheter
Series 65 Heat Detector - - - - - - - 17 28V dc
RS-artikelnummer 524-5961
Tillv. art.nrRM1100
VarumärkeABUS
214,45 kr
Each
Enheter
- Smoke Detector - - - - PC 100mm 46 mm 12V dc
RS-artikelnummer 183-7313
Tillv. art.nrSA700LUKX5
VarumärkeFirst Alert
162,51 kr
Each
Enheter
- Optical Smoke Detector 85dB - - - - 86mm 37 mm -
RS-artikelnummer 169-4638
Tillv. art.nrCSA-GOV24
VarumärkeHoyles
2 640,84 kr
Each
Enheter
- Smoke Detector - - - - - - - -
RS-artikelnummer 123-5771
Tillv. art.nrFH450RB
452,69 kr
Each
Enheter
- - - Yes - - - - - -
RS-artikelnummer 183-7315
Tillv. art.nrSA700UKX5
VarumärkeFirst Alert
119,50 kr
Each
Enheter
- Optical Smoke Detector 85dB - - - - 86mm 37 mm -
RS-artikelnummer 183-7307
Tillv. art.nr660MBX
VarumärkeBRK
295,19 kr
Each
Enheter
- Optical Smoke Detector 85dB Yes Yes - - 140mm 44 mm 230V ac
RS-artikelnummer 169-4639
Tillv. art.nrCSA-FSU24
VarumärkeHoyles
3 160,63 kr
Each
Enheter
- Smoke Detector - - - - - - - -
RS-artikelnummer 123-5778
Tillv. art.nrFHB10W
588,14 kr
Each
Enheter
- - - Yes - - - - - -
RS-artikelnummer 123-5768
Tillv. art.nrFH250BB
315,89 kr
Each
Enheter
- - - Yes - - - - - -
RS-artikelnummer 169-4645
Tillv. art.nrCSA-AVC3
VarumärkeHoyles
1 247,83 kr
Each
Enheter
- Smoke Detector - - - - Steel - - -
RS-artikelnummer 123-5777
Tillv. art.nrFHH10
233,58 kr
Each
Enheter
- - - Yes - - - - - -
RS-artikelnummer 183-7311
Tillv. art.nr790MRL
VarumärkeBRK
587,15 kr
Each
Enheter
- Smoke Detector 85dB Yes Yes - - 140mm 68 mm 230V ac
RS-artikelnummer 524-5898
Tillv. art.nrRM1000
VarumärkeABUS
331,09 kr
Each
Enheter
- Optical Smoke Detector - - - - PC 98mm 46 mm 12V dc
RS-artikelnummer 183-7317
Tillv. art.nrSCO5UK
VarumärkeFirst Alert
418,18 kr
Each
Enheter
- Optical Smoke Detector 85dB - - - - 120mm 50 mm -
RS-artikelnummer 183-7305
Tillv. art.nr670MBX
VarumärkeBRK
138,59 kr
Each
Enheter
- Smoke Detector 85dB Yes Yes - - 133mm 38 mm 230V ac
RS-artikelnummer 183-7310
Tillv. art.nr690MBX
VarumärkeBRK
303,79 kr
Each
Enheter
- Smoke Detector 85dB Yes Yes - - 140mm 58 mm 230V ac
RS-artikelnummer 123-5774
Tillv. art.nrFH150 Midi
109,91 kr
Each
Enheter
- - - - - Yes - - - -
Related Products
The Testo 316-1 detects gas leaks in heating ...
Description:
The Testo 316-1 detects gas leaks in heating systems.Rapid response time. Bendable measurement probe.Optical and audible alarms signal when limits are exceeded.Applications:checking for leaks in domestic gas pipes, safety for heating technicians, protecting inhabited areas.AAA alkaline batteries (stock no.: ...
Providing a comprehensive range of sensing devices for ...
Description:
Providing a comprehensive range of sensing devices for use on DC monitored, automatic fire detection systems, this series of smoke and sensing devices has been designed to provide easy installation and maintenance with full detector interchangeability. Particular emphasis has been ...
Firehawk FHB10W series battery operated Optical smoke alarms ...
Description:
Firehawk FHB10W series battery operated Optical smoke alarms have a 10-year life complete with TSE Thermal Stability Enhancement including Wireless Interlink. The high performing wireless interlink alarm is used and recommended by the UK Fire and Rescue Services. The alarm ...
The CSA-FSU24 flasher unit is designed to receive ...
Description:
The CSA-FSU24 flasher unit is designed to receive signals from any other SD Evolution product and provide a voice message along with a visual alert via flashing ultra-bright LEDs. The FSU24 would ordinarily be placed outside toilet / washroom, offices, ...