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

Filters

Viewing 1 - 20 of 33 products
Results per page
Description Price Series Type Sound Level Connection Type Power Indicator Low Power Warning Signal Piezo Alarm Material Diameter Depth Operating Voltage
RS Stock No. 240-0553
Mfr. Part No.55000-317
BrandApollo
SGD118.13
Each
units
Series 65 Optical Smoke Detector - - - - - - - - 9 33V dc
RS Stock No. 240-0547
Mfr. Part No.55000-217
BrandApollo
SGD115.59
Each
units
Series 65 Ionisation Detector - - - - - - - - 17 28V dc
RS Stock No. 123-5768
Mfr. Part No.FH250BB
SGD55.39
Each
units
- - - - Yes - - - - - -
RS Stock No. 123-5772
Mfr. Part No.FH500R
SGD62.57
Each
units
- - - - - - Yes - - - -
RS Stock No. 524-5961
Mfr. Part No.RM1100
BrandABUS
SGD37.43
Each
units
- Smoke Detector - - - - - PC - - -
RS Stock No. 123-5778
Mfr. Part No.FHB10W
SGD84.88
Each
units
- - - - Yes - - - - - -
RS Stock No. 524-5898
Mfr. Part No.RM1000
BrandABUS
SGD49.30
Each
units
- Optical Smoke Detector - - - - - PC - - -
RS Stock No. 123-5777
Mfr. Part No.FHH10
SGD33.72
Each
units
- - - - Yes - - - - - -
RS Stock No. 123-5774
Mfr. Part No.FH150 Midi
SGD15.87
Each
units
- - - - - - Yes - - - -
RS Stock No. 287-1545
Mfr. Part No.820613
SGD48.51
Each
units
- - - - - - - - - - -
RS Stock No. 123-5769
Mfr. Part No.FH450BB
SGD55.65
Each
units
- - - - Yes - - - - - -
RS Stock No. 123-5779
Mfr. Part No.FHH10W
SGD91.92
Each
units
- - - - Yes - - - - - -
RS Stock No. 123-5775
Mfr. Part No.FH155 Midi
SGD18.72
Each
units
- - - - - - Yes - - - -
RS Stock No. 123-5776
Mfr. Part No.FHB10
SGD37.66
Each
units
- - - - Yes - - - - - -
RS Stock No. 123-5773
Mfr. Part No.FH550RF
SGD80.63
Each
units
- - - - - - Yes - - - -
RS Stock No. 123-5770
Mfr. Part No.FH250RB
SGD60.49
Each
units
- - - - Yes - - - - - -
RS Stock No. 183-7307
Mfr. Part No.660MBX
BrandBRK
SGD49.63
Each
units
- Optical Smoke Detector 85dB - Yes Yes - - 140mm 44 mm 230V ac
RS Stock No. 169-4639
Mfr. Part No.CSA-FSU24
BrandHoyles
SGD329.36
Each
units
- Smoke Detector - - - - - - - - -
RS Stock No. 183-7317
Mfr. Part No.SCO5UK
SGD70.31
Each
units
- Optical Smoke Detector 85dB - - - - - 120mm 50 mm -
RS Stock No. 183-7309
Mfr. Part No.760MRL
BrandBRK
SGD98.72
Each
units
- Optical Smoke Detector 85dB - Yes Yes - - 140mm 53 mm 230V ac
Related Products
The No Climb solo urban poles and backpack ...
Description:
The No Climb solo urban poles and backpack is lightweight kit designed to allow engineers to move easily around towns, large sites, or buildings without the need to carry bulky poles and bags. The pole length is half of the ...
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, ...
The SpeechPOD PIR Voice warning system is designed ...
Description:
The SpeechPOD PIR Voice warning system is designed to provide any type of voice messages to warn of risks or hazards such as slips, trips and falls, infection control procedures, hygiene requirements, security monitoring etc... The SpeechPOD can detect persons ...
Ionisation sensing technology.230V mains powered.Battery back-up:MRL – 10 ...
Description:
Ionisation sensing technology.230V mains powered.Battery back-up:MRL – 10 year sealed for life rechargeable lithium battery.Hardwire interconnect with up to 12 units of a similar type.Compatible with wireless interlink base.Supplied with PUSH-FIT mounting base.Central test and silence button.