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Hundreds of categories, thousands of products, millions of details and user reviews for detectors. How can you make sense of all of this? Try our Alza Test, which guarantees an objective selection based on customers' experiences. How the products from detectors rank are based solely on various data and feedback from actual people who have purchased the products.

All detectors
All from 396
SONOFF Zigbee Human Presence Sensor - Motion Sesnor
SONOFF Zigbee Human Presence Sensor
399,-
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy with code ALZADNY15 339,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 15 % s kódem ALZADNY15. Klikněte a kód se uplatní automaticky.
Motion Sesnor , connect through Radio frequency, open system with detection motion and Human presence, range: lighting, power supply: Power plug,
Added to cart
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FIBARO Motion Sensor - Motion Sesnor
FIBARO Motion Sensor
-7 % off new 1,569,- New 1,699,-
Unsealed - in stock 1 pcs
2 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth with detection motion, Light and temperature, range: security, application in English, Czech, German and Slovak, power...
Added to cart
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Combined Detector of CO, Flammable and Explosive Gases SAFE 808COM - Gas Leak Detector
Combined Detector of CO, Flammable and Explosive Gases SAFE 808COM
1,369,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), natural gas, propane-butane, measurement range to 2500 ppm, mains power supply, reaction time 20 s, acoustic, visual signals,...
Added to cart
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Airbi CO2AIR digital carbon dioxide meter - Detector
Airbi CO2AIR digital carbon dioxide meter
1,979,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
Added to cart
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Airbi CO2AIR digital carbon dioxide meter - Detector
Airbi CO2AIR digital carbon dioxide meter
-27 % off new 1,459,- New 1,999,-
As good as new - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
Added to cart
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AQARA Presence Sensor FP2 - Motion Sesnor
AQARA Presence Sensor FP2
2,079,-
From 96,- per month
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth, closed system with detection motion and Light compatible with Apple Home, Google Home, IFTTT and Aqara Home, range:...
Added to cart
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Elektrobock LX118 - Motion Sesnor
Elektrobock LX118
-13 % off new 259,- New 299,-
As good as new - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor with detection motion, range: electrical installation, power supply: Power plug,
Added to cart
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EMOS GoSmart Carbon Monoxide Detector TCS0101W, Wi-Fi - Gas Leak Detector
EMOS GoSmart Carbon Monoxide Detector TCS0101W, Wi-Fi
-6 % off new 779,- New 829,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features...
Added to cart
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IMMAX NEO Smart Occupancy Sensor, Zigbee 3.0 - Motion Sesnor
IMMAX NEO Smart Occupancy Sensor, Zigbee 3.0
-10 % off new 899,- New 999,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through WiFi 2,4 GHz and WiFi 5 GHz, open system with detection motion and Light compatible with Apple Siri shortcuts, Tuya and Immax NEO PRO, range:...
Added to cart
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Electrobock CN15F with 2 sensors - Motion Sesnor
Electrobock CN15F with 2 sensors
-8 % off new 339,- New 369,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Added to cart
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Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi - Smoke Detector
Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi
-19 % off new 919,- New 1,148,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - temperature measurement from 0 to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating...
Added to cart
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MOES Gas Leakage Detector, Zigbee - Gas Leak Detector
MOES Gas Leakage Detector, Zigbee
689,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy with code ALZADNY20 551,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky.
Gas Leak Detector - detects natural gas, mains power supply, acoustic signals, notifications via push notifications, signal volume 70 dB, battery indication, features alarm, cover...
Added to cart
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Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor - Air Quality Meter
Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor
-8 % off new 1,879,- New 2,052,-
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects temperature, humidity, TVOC (volatile organic compounds), temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %,...
Added to cart
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FireAngel SB5 fire and smoke detector - Smoke Detector
FireAngel SB5 fire and smoke detector
-7 % off new 369,- New 399,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , acoustic, visual signals, signal volume 85 dB, features: test button and temporary shutdown, operating temperature from 0 to 40 °C, operating...
Added to cart
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Airthings View Radon - Air Quality Monitor - Air Quality Meter
Airthings View Radon - Air Quality Monitor
-7 % off new 4,529,- New 4,899,-
From 107,- per month
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter is designed for indoor environments where it monitors humidity, temperature and the amount of radon in the air. You use batteries or a USB cable to power it....
Added to cart
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Airthings View Radon - Air Quality Monitor - Air Quality Meter
Airthings View Radon - Air Quality Monitor
-15 % off new 4,119,- New 4,899,-
From 98,- per month
As good as new - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter is designed for indoor environments where it monitors humidity, temperature and the amount of radon in the air. You use batteries or a USB cable to power it....
Added to cart
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BOT Smart carbon dioxide detector WiFi CO2 - Air Quality Meter
BOT Smart carbon dioxide detector WiFi CO2
-7 % off new 1,329,- New 1,439,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, mains power supply, acoustic, visual signals, notifications via...
Added to cart
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BOT Smart carbon dioxide detector WiFi CO2 - Air Quality Meter
BOT Smart carbon dioxide detector WiFi CO2
-9 % off new 1,299,- New 1,439,-
As good as new - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, mains power supply, acoustic, visual signals, notifications via...
Added to cart
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FIBARO Flood Sensor - Water Leak Detector
FIBARO Flood Sensor
-55 % off new 909,- New 2,059,-
Unsealed - in stock 1 pcs
2 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects temperature and water gas, battery-powered, connect via Bluetooth, standalone functional unit,, app with Czech language support, app with Czech and...
Added to cart
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IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0 - Motion Sesnor
IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0
439,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , open system with detection motion and Light compatible with Apple Siri shortcuts, Tuya, Lidl Home, Smartlife, Nedis SmartLife, ETA SMART, Tesla Smart and Immax NEO...
Added to cart
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EVOLVEO wireless water level detector for Alarmex/Sonix - Water Leak Detector
EVOLVEO wireless water level detector for Alarmex/Sonix
-6 % off new 279,- New 299,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects water gas, battery-powered, central unit required to function
Added to cart
- +
GARNI 210T OneCare - Air Quality Meter
GARNI 210T OneCare
-27 % off new 1,799,- New 2,489,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -10 to 50 °C with accuracy 0.8 °C, humidity measurement with accuracy 5 %, mains +...
Added to cart
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Airthings Corentium Home 2 - Smart radon detector - Air Quality Meter
Airthings Corentium Home 2 - Smart radon detector
-1 % off new 4,429,- New 4,476,-
From 105,- per month
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects temperature, humidity, radon, battery-powered, visual signals, notifications via push notifications, display, operating temperature from 4 to 40 °C,...
Added to cart
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Flammable and Explosive Gas Detector SAFE 808L (Natural Gas) - Gas Leak Detector
Flammable and Explosive Gas Detector SAFE 808L (Natural Gas)
-20 % off new 709,- New 889,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects natural gas, propane-butane, measurement range to 2500 ppm, mains power supply, reaction time 20 s, acoustic, visual signals, signal volume 85 dB,...
Added to cart
- +
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