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Cheap detectors

On this page you will find detectors at the lowest prices, more so all detectors ranked from the lowest to the highest price. It will be easier to see products that are now marked at their lowest price. The item with the lowest price in this category is iGET SECURITY P9 - wireless water level detector for iGET SECURITY M3B and M2B marked at 5.89 € incl. VAT. Is this what you’re looking for?
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FIBARO Smoke Sensor - Smoke Detector
FIBARO Smoke Sensor
-30 % off new 54.90 € New 79.20 €
As good as new - in stock 1 pcs
2 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features:...
FIBARO Smoke Sensor - Smoke Detector
FIBARO Smoke Sensor
-30 % off new 54.90 € New 79.20 €
Unsealed - in stock 3 pcs
2 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features:...
Combined Fire Detector and CO FireAngel SCB10 - Gas Leak Detector
Combined Fire Detector and CO FireAngel SCB10
55.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic signals, battery indication, features alarm, cover material plastic, battery and mounting kit...
BOT Smart carbon dioxide detector WiFi CO2 - Air Quality Meter
BOT Smart carbon dioxide detector WiFi CO2
-6 % off new 55.90 € New 60.07 €
Unsealed - in stock 2 pcs
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, mains power supply, acoustic, visual signals, notifications via...
Ajax DoorProtect White - Door and Window Sensor
Ajax DoorProtect White
57.79 €
Currently Unavailable
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, range of 1200m, central unit required, supported OS: Android, Windows and iOS, application in...
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KIDDE Combination smoke detector KIDDE-K10SCO - Smoke Detector
KIDDE Combination smoke detector KIDDE-K10SCO
57.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - detects CO (carbon monoxide), measurement range from 0 ppm, battery-powered , acoustic signals, signal volume 85 dB, battery indication, cover material plastic,...
Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa) - Door and Window Sensor
Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
57.90 €
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy with code ALZADNI20 46.32 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky.
Door and Window Sensor - wireless, compatible with Apple Home, Google Home and Samsung SmartThings, connect via Bluetooth, central unit required, supported OS: Android and iOS,...
Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa) - Motion Sesnor
Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
57.90 €
On the way > 5 pcs
Expected 23/04/2026
Buy with code ALZADNI20 46.32 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky.
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Light compatible with Apple Home, Google Home and Samsung SmartThings, range: lighting, security...
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Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm - Gas Leak Detector
Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm
58.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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...
Kidde 10LLDCO CO Detector (Moisture Resistant) - Gas Leak Detector
Kidde 10LLDCO CO Detector (Moisture Resistant)
Great price 58.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), signal volume 85 dB, standalone unit
Nedis ZBDCO11WT - Gas Leak Detector
Nedis ZBDCO11WT
59.90 €
Ordered on request
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features alarm,...
BOT Smart carbon dioxide detector WiFi CO2 - Air Quality Meter
BOT Smart carbon dioxide detector WiFi CO2
60.07 €
In stock > 5 pcs at the supplier's
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, mains power supply, acoustic, visual signals, notifications via...
Ajax LeaksProtect Black - Water Leak Detector
Ajax LeaksProtect Black
60.82 €
Currently Unavailable
Water Leak Detector - detects water gas, battery-powered, range: 1300 m, reaction time: 0,15s, compatible with Ajax, connection via radio waves, protection against sabotage,...
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Ajax LeaksProtect White - Water Leak Detector
Ajax LeaksProtect White
60.82 €
In stock 5 pcs at the supplier's
Water Leak Detector - detects water gas, battery-powered, range: 1300 m, reaction time: 0,15s, compatible with Ajax, connection via radio waves, protection against sabotage,...
Philips Hue Outdoor Motion Sensor - Motion Sensor
Philips Hue Outdoor Motion Sensor
60.90 €
In stock > 5 pcs
Motion Sensor - for lighting, Exterior and Interior, battery powered, compatible with Apple Home and Philips Hue, independently functional unit, a central unit is required to...
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi - Sensor
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi
62.58 €
In stock > 5 pcs at the supplier's
Sensor - precise measurement using ultrasonic technology, suitable for any type of liquid, IP65 resistance, possibility of connection to a smart water valve, Immax NEO PRO app in...
Homematic IP Rain Sensor - HmIP-SRD - Sensor
Homematic IP Rain Sensor - HmIP-SRD
-60 % off new 63.90 € New 159.90 €
Unsealed - in stock 1 pcs
Sensor The wireless rain sensor (HmIP-SRD) for outdoor use is part of the Homematic IP smart home system. The sensor with its high weather and weather protection offers a wide...
Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi - Detector
Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi
63.90 €
On the way 4 pcs
Expected 22/04/2026
Detector - Shelly GAS is a compact and highly sensitive CNG natural gas detector, bringing additional security for your home and family. Alarm: flashing LED & acoustic signal....
Multifunctional digital CO detector FireAngel FA3322 with LCD display - Gas Leak Detector
Multifunctional digital CO detector FireAngel FA3322 with LCD display
64.90 €
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, battery indication, features alarm, cover material plastic, operating...
Homematic IP PIR motion detector - for 55 mm frame, indoor - HmIP-SMI55-2 - Motion Sesnor
Homematic IP PIR motion detector - for 55 mm frame, indoor - HmIP-SMI55-2
65.12 €
Currently Unavailable
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Google Home and Manufacturer app, range: security, power supply: Battery-Powered,
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Homematic IP Occupancy Sensor - indoor - HmIP-SPI - Motion Sesnor
Homematic IP Occupancy Sensor - indoor - HmIP-SPI
65.57 €
Currently Unavailable
Motion Sesnor with detection motion compatible with Google Home and Manufacturer app, range: lighting, power supply: Battery-Powered,
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Homematic IP Siren indoor - HmIP-ASIR-2 - Siren
Homematic IP Siren indoor - HmIP-ASIR-2
65.57 €
Currently Unavailable
Siren - open system, area of use: security, OS supported: Android and iOS, compatible with Google Home and Homematic IP, power supply: Battery-Powered
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Homematic IP Smoke detector HmIP-SWSD-2 - Smoke Detector
Homematic IP Smoke detector HmIP-SWSD-2
65.65 €
In stock 1 pcs
Buy with code ALZADNI10 59.09 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky.
Smoke Detector - battery-powered , detection reach 40 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: test button, cover material plastic, operating...
GARNI 204 OneCare - Air Quality Meter
GARNI 204 OneCare
-41 % off new 68.90 € New 116.90 €
Unsealed - in stock 1 pcs
Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -40 to 70 °C, humidity measurement from 1 to 99 %, mains + battery-powered,...
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