Black Friday - Detectors

Black Friday

Black Friday is here! 🖤 Thousands of products with a fair discount.

  • The offer is valid from 30th October to 30th November 2026.
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  • The offer is valid as long as the Goods are included in the Campaign or until the Goods are sold out during the Campaign. The Goods offer may be updated during the Campaign.
  • Stock for some products gets redistributed to customers in the Czech Republic, Slovakia, Austria, Hungary, and other countries where Alza delivers its products, based on the earlier order delivery time. This does not apply to regional/language-specific product versions.
  • Full Terms and Conditions of the campaign can be found here.
  • Alza reserves the right to change the terms and conditions of the campaign.
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27 Results
4.5 43×
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Airthings View Plus - complete air quality monitor
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), dust particles, mains + battery-powered, visual signals, notifications via push notifications, battery indication and display, features: memory, power cable and battery included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
BLACK FRIDAY -10 % 276.19 € 306.90 €
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Order Code: Air22TNG1
4.8 109×
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Honeywell R200C-2, Carbon monoxide detector and detector, CO Alarm
Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 3 to 330 ppm, gas detection sensitivity 28 ppm, battery-powered, acoustic signals, signal volume 85 dB, features test button, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 25 to 95 %, ingress protection IP44, input voltage 3V, battery included, standalone unit
BLACK FRIDAY -10 % 41.30 € 45.90 €
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Order Code: HNW22_01
4.9 16×
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Honeywell Home R200S-2 Fire detector alarm - smoke sensor (optical principle), battery operated
Smoke Detector - temperature measurement to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button and alarm, cover material plastic, operating temperature to 40 °C, operating humidity from 25 to 93 %, input voltage 3V, battery included, standalone unit
BLACK FRIDAY -10 % 26 € 28.90 €
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Order Code: HNW22_04
4.4 3×
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Airthings Wave Enhance
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), CO₂ (carbon dioxide), noise, battery-powered, visual signals, notifications via push notifications, features: memory, operating temperature from 0 to 45 °C, operating humidity from 5 to 95 %, battery included, standalone unit requires a central hub, compatible with Android and iOS
BLACK FRIDAY -22 % 121.47 € 155.90 €
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Order Code: Air24001
4.5 14×
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Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm
Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 3 to 330 ppm, gas detection sensitivity 28 ppm, battery-powered, detection reach 100 m, acoustic signals, signal volume 85 dB, features test button and alarm, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 25 to 95 %, input voltage 3V, battery included, standalone unit
BLACK FRIDAY -10 % 53 € 58.90 €
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Order Code: HNW22_02
4.7 17×
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TESLA Smart Gas Sensor
Gas Leak Detector - mains power supply, detection reach 50 m, acoustic, visual signals, notifications via push notifications, features reset, cover material plastic, operating temperature from 0 to 55 °C,, ingress protection IP20, input voltage 12 V, power adapter and mounting kit included, compatible with Tuya, Smartlife and Tesla Smart, requires a central hub, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -21 % 21.21 € 26.90 €
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Order Code: Tsl_22_30
5.0 1×
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X-Sense XS01-WX Wi-Fi Smoke Detector
Smoke Detector - battery-powered , reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: test button and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -19 % 41.02 € 50.90 €
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Order Code: XSEN26003
4.0 3×
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MOES Smoke Detector, Zigbee
Smoke Detector - temperature measurement from 0 to 55 °C, battery-powered , detection reach 15 m, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, operating temperature from 0 to 55 °C, battery and mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -22 % 29.29 € 37.90 €
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Order Code: Moes22_38
4.4 9×
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Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi
Smoke Detector - temperature measurement from 0 to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating temperature to 40 °C, operating humidity up to 93 %, input voltage 3V, battery included, standalone unit
BLACK FRIDAY -10 % 44 € 48.90 €
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Order Code: HNW22_06
4.6 30×
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Emos GS558
Smoke Detector - battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, operating temperature from 10 to 40 °C, operating humidity from 30 to 95 %, battery included, standalone unit
BLACK FRIDAY -20 % 20.72 € 25.90 €
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Order Code: EMDET0002
4.1 12×
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EMOS GoSmart Air Quality Monitor E30300 with Wifi
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, temperature measurement from 0 to 50 °C with accuracy 0.1 °C, humidity measurement from 20 to 90 % with accuracy 1 %, mains power supply, acoustic, visual signals, notifications via push notifications, display, features: hours, alarm clock, memory, automatic scenarios and alarm, power cable included, compatible with Tuya, Lidl Home, Smartlife and EMOS GoSmart, standalone unit requires a central hub, app language options: Czech and English, compatible with Android and iOS
BLACK FRIDAY -39 % 62.90 € 104.64 €
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Order Code: EMOS24070
4.4 5×
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Honeywell Home R200S-N2 Interconnected fire detector alarm - smoke (optical) principle, battery oper
Smoke Detector - temperature measurement from 0 to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating temperature to 40 °C, operating humidity up to 93 %, input voltage 3V, battery included, standalone unit
BLACK FRIDAY -10 % 39.50 € 43.90 €
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Order Code: HNW22_05
5.0 3×
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FireAngel FA6111 optical fire detector with LED emergency lighting
Smoke Detector - battery-powered , acoustic signals, signal volume 85 dB, battery indication, operating temperature from 4 to 38 °C, operating humidity up to 90 %, standalone unit
BLACK FRIDAY -20 % 22.30 € 27.90 €
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Order Code: SAFEH178
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X-Sense FS31 (3+1) Set of 3 XS01-M Wireless Smoke Detectors with SB550 Base Station
Smoke Detector - temperature measurement from 4 to 38 °C, humidity measurement, battery-powered , detection reach 500 m, reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: test button and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, input voltage 3V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -15 % 95.91 € 113.90 €
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Order Code: XSEN26007
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BOSCH AKU Filio gas cylinder level indicator 0.603.684.000 (2 × AAA)
Gas Leak Detector - propane-butane detection, battery-powered, response time 5 s, audible and visual alarms, battery status indicator, alarm function, plastic housing, operating temperature from -15 to 50 °C, operating humidity up to 90 %, input voltage 3 V, battery included, stand-alone unit
BLACK FRIDAY -13 % 39.02 € 44.90 €
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Order Code: BOShob393
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X-Sense FS121 (12+1) Set of 12 XS01-M Wireless Smoke Detectors with SB550 Central Unit
Smoke Detector - temperature measurement from 4 to 38 °C, humidity measurement, battery-powered , detection reach 500 m, reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: test button and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, input voltage 3V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -14 % 251.36 € 293.90 €
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Order Code: XSEN26009
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X-Sense SC07-MR RF Combined Smoke and CO Detector for SB550 Station
Smoke Detector - detects CO (carbon monoxide), gas, measurement range from 30 to 999 ppm, battery-powered , reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, display and protection against sabotage, features: test button, hours and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -19 % 41.02 € 50.90 €
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Order Code: XSEN26004
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X-Sense XS01-M RF Smoke Detector for the SB550 Station
Smoke Detector - battery-powered , detection reach 500 m, reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: test button and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -14 % 28.87 € 33.90 €
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Order Code: XSEN26002
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X-Sense XH02-M RF Temperature Sensor for SB550 Station
Temperature Sensor
BLACK FRIDAY -14 % 28.87 € 33.90 €
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Order Code: XSEN26010
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X-Sense SBS50 Base Station for the X-Sense RF Security System
Smart Module - X-Sense central unit, connects up to 50 RF devices and sends notifications to the app
BLACK FRIDAY -14 % 28.87 € 33.90 €
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Order Code: XSEN26006
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SAFE Motion Cam Outdoor (PhOD), white
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Manufacturer app, range: security, application in English, Czech and German, power supply: Battery-Powered,
BLACK FRIDAY -10 % 263.60 € 292.90 €
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Order Code: SAFEH26019
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SAFE Motion Guard Plus, white
Sensor - wireless dual PIR motion detector with microwave sensor detecting motion up to 12 meters, which is able to reliably ignore the movement of animals in the guarded area (PET immunity) up to a weight of 18 kg and 50 cm height, The detector is powered by a replaceable battery type CR123A, which allows continuous operation of the detector for up to 4 years, colour white
BLACK FRIDAY -10 % 61.10 € 67.90 €
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Order Code: SAFEH26002
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ELEKTROBOCK Air Quality Sensor SN121-AN
Air Quality Meter - detects CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, deviation 50 ppm, gas detection sensitivity 1 ppm, temperature measurement from 0 to 50 °C, humidity measurement with accuracy 5 %, mains power supply, reaction time 120 s, visual signals, battery indication, cover material plastic, operating temperature from 0 to 50 °C,, ingress protection IP20, input voltage 12 V and 48 V, standalone unit
BLACK FRIDAY -10 % 92.61 € 102.90 €
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Order Code: ELBOCK156
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SAFE Glass Guard, white
Sensor - wireless glass breakage detector for security of glazed surfaces equipped with two NC inputs, Multi-factor glass breakage detection with the possibility of remote sensitivity configuration significantly eliminates the occurrence of false alarms, The detector is powered by a replaceable battery that allows continuous operation for up to 3 years, colour white
BLACK FRIDAY -10 % 46.70 € 51.90 €
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Order Code: SAFEH26007