Optical Smoke Alarms
Stay protected with Optical Smoke Alarms – advanced fire detection technology designed to provide early alerts when smoke is detected. Using light-based sensing, these alarms offer reliable performance in both residential and commercial spaces, ensuring enhanced fire safety and peace of mind.
Pair your Optical Smoke Alarms with our heat detectors or fire alarm panels for a complete fire safety system. You can also explore our full fire safety collection to keep your property fully protected.
Shop reliable brands such Aico, Apollo and C-TEC at WME.
For installation advice and compliance tips, take a look at our guide What Are the Best Smoke and CO2 Detectors?
Save £4.54
Aico Ei146e Optical Smoke Alarm – Mains Powered with Battery Backup – SKU: Ei146e
£ 23 14RRP: £27.68WME Pro Plan priceGet Pro Now£20.36 12% off5 Years Warranty
Save £8.79
Aico Ei3016 Optical Smoke Alarm – High-Performance Sensor – Ei3016, Ei3000MRF Compatible
£ 46 99RRP: £55.78WME Pro Plan priceGet Pro Now£41.35 12% off5 Years Warranty
Save £3.91
Aico Ei650i Battery Optical Smoke Alarm – 10-Year Lithium, AudioLINK+ – SKU: Ei650i
£ 20 15RRP: £24.06WME Pro Plan priceGet Pro Now£17.73 12% off5 Years Warranty
Save £12.03
Aico Ei650iRF RadioLINK+ Optical Smoke Alarm – 10-Year Battery, AudioLINK+ – SKU: Ei650iRF
£ 63 99RRP: £76.02WME Pro Plan priceGet Pro Now£56.31 12% off5 Years Warranty
Save £7.67
Aico Ei660i Multi-Sensor Fire Alarm – Battery-Powered Optical & Heat Detection – SKU: Ei660i
£ 39 40RRP: £47.07WME Pro Plan priceGet Pro Now£34.67 12% off
Save £16.22
Aico Ei660iRF RadioLINK+ Multi-Sensor Fire Alarm – Optical & Heat – SKU: Ei660iRF
£ 85 99RRP: £102.21WME Pro Plan priceGet Pro Now£75.67 12% off5 Years Warranty
Save £1.37
AlarmSense Optical Smoke Detector, 2-wire, EN54‑7, 9–33 V DC, 100×42 mm 55000-390APO
EN54‑7£ 18 38RRP: £19.75WME Pro Plan priceGet Pro Now£16.17 12% off
Save £2.40
C-TEC CA416 CAST Addressable Optical Smoke Detector, EN54-7/17/13, 0.16 dB/m
LPCB Certified£ 32 36RRP: £34.76WME Pro Plan priceGet Pro Now£28.48 12% offFast delivery Tomorrow, 19 Jun
Save £1.11
C‑TEC ActiV C4416 Optical Smoke Detector C4416, EN54‑7, Photoelectric
Infrared Detection£ 14 94RRP: £16.05WME Pro Plan priceGet Pro Now£13.15 12% offFast delivery Tomorrow, 19 Jun
Save £3.42
Discovery Optical Smoke Detector, Addressable, EN54-7, 17–28 V, 58000-600APO
EN54-7£ 45 97RRP: £49.39WME Pro Plan priceGet Pro Now£40.45 12% off
Save £4.73
Evolution Addressable Optical Smoke Detector EV‑PYS with Integrated Sounder, 24–38 V
88 dB Sounder£ 63 52RRP: £68.25WME Pro Plan priceGet Pro Now£55.90 12% off
Save £2.24
Nittan EV-PH Addressable Multi‑Sensor Detector (Optical Smoke + 54°C A1R Heat), Evolution FSK
Dual Sensor Tech£ 30 13RRP: £32.37WME Pro Plan priceGet Pro Now£26.51 12% offFast delivery Tomorrow, 19 Jun
Save £1.89
Nittan EV‑P Addressable Photoelectric Smoke Detector INSUFFICIENT DATA
Low Profile£ 25 41RRP: £27.30WME Pro Plan priceGet Pro Now£22.36 12% offFast delivery Tomorrow, 19 Jun
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Save £4.54
Aico Ei146e Optical Smoke Alarm – Mains Powered with Battery Backup – SKU: Ei146e
£ 23 14RRP: £27.685 Years Warranty -
Save £8.79
Aico Ei3016 Optical Smoke Alarm – High-Performance Sensor – Ei3016, Ei3000MRF Compatible
£ 46 99RRP: £55.785 Years Warranty -
Save £3.91
Aico Ei650i Battery Optical Smoke Alarm – 10-Year Lithium, AudioLINK+ – SKU: Ei650i
£ 20 15RRP: £24.065 Years Warranty -
Save £12.03
Aico Ei650iRF RadioLINK+ Optical Smoke Alarm – 10-Year Battery, AudioLINK+ – SKU: Ei650iRF
£ 63 99RRP: £76.025 Years Warranty -
Save £7.67
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Save £16.22
Aico Ei660iRF RadioLINK+ Multi-Sensor Fire Alarm – Optical & Heat – SKU: Ei660iRF
£ 85 99RRP: £102.215 Years Warranty -
Save £1.37
AlarmSense Optical Smoke Detector, 2-wire, EN54‑7, 9–33 V DC, 100×42 mm 55000-390APO
EN54‑7£ 18 38RRP: £19.75 -
Save £2.40
C-TEC CA416 CAST Addressable Optical Smoke Detector, EN54-7/17/13, 0.16 dB/m
LPCB Certified£ 32 36RRP: £34.76Fast delivery Tomorrow, 19 Jun -
Save £1.11
C‑TEC ActiV C4416 Optical Smoke Detector C4416, EN54‑7, Photoelectric
Infrared Detection£ 14 94RRP: £16.05Fast delivery Tomorrow, 19 Jun -
Save £3.42
Discovery Optical Smoke Detector, Addressable, EN54-7, 17–28 V, 58000-600APO
EN54-7£ 45 97RRP: £49.39 -
Save £4.73
Evolution Addressable Optical Smoke Detector EV‑PYS with Integrated Sounder, 24–38 V
88 dB Sounder£ 63 52RRP: £68.25 -
Save £2.24
Nittan EV-PH Addressable Multi‑Sensor Detector (Optical Smoke + 54°C A1R Heat), Evolution FSK
Dual Sensor Tech£ 30 13RRP: £32.37Fast delivery Tomorrow, 19 Jun -
Save £1.89
Nittan EV‑P Addressable Photoelectric Smoke Detector INSUFFICIENT DATA
Low Profile£ 25 41RRP: £27.30Fast delivery Tomorrow, 19 Jun