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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 259
Bentech C999 Carbon Monoxide Autonomous Fire Detector - Gas Leak Detector
Bentech C999 Carbon Monoxide Autonomous Fire Detector
-5 % off new 5,190 Ft New 5,480 Ft
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 signals, signal volume 85 dB, battery indication, features alarm, cover material plastic, operating...
Added to cart
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Airbi CO2AIR digital carbon dioxide meter - Detector
Airbi CO2AIR digital carbon dioxide meter
-13 % off new 28,990 Ft New 33,690 Ft
Unsealed - in stock 2 pcs
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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Flammable gas leak detector - solid state sensor, 85dB siren, battery backup - Gas Leak Detector
Flammable gas leak detector - solid state sensor, 85dB siren, battery backup
-7 % off new 5,190 Ft New 5,620 Ft
As good as new - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects natural gas, propane-butane, LPG, deviation 1500 ppm, gas detection sensitivity 2500 ppm, combined mains + battery-powered , acoustic signals, signal...
Added to cart
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MOES Gas Leakage Detector, Zigbee - Gas Leak Detector
MOES Gas Leakage Detector, Zigbee
-8 % off new 10,890 Ft New 11,890 Ft
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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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EVOLVEO wireless outdoor siren for Alarmex / Sonix - Siren
EVOLVEO wireless outdoor siren for Alarmex / Sonix
-6 % off new 30,990 Ft New 33,290 Ft
Unsealed - in stock 1 pcs
Siren - closed system, area of use: security, power supply: Power plug
Added to cart
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Airthings View Radon - Air Quality Monitor - Air Quality Meter
Airthings View Radon - Air Quality Monitor
-4 % off new 78,590 Ft New 82,690 Ft
Unsealed - in stock 1 pcs
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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MOES Mini CO Detector, grey - Gas Leak Detector
MOES Mini CO Detector, grey
-4 % off new 16,290 Ft New 16,990 Ft
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - measurement range from 0 to 1000 ppm, deviation 100 ppm, reaction time 2 s, acoustic signals, battery indication and display, features alarm, cover material...
Added to cart
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EZVIZ T3C smart button - Smart Wireless Switch
EZVIZ T3C smart button
-7 % off new 7,490 Ft New 8,090 Ft
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smart Wireless Switch - compatible with EZVIZ, control via app on Android and iOS,connect via , application in Czech and English
Added to cart
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FIBARO Flood Sensor - Water Leak Detector
FIBARO Flood Sensor
-40 % off new 20,890 Ft New 34,890 Ft
Unsealed - in stock 1 pcs
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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GARNI 210T OneCare - Air Quality Meter
GARNI 210T OneCare
-30 % off new 29,390 Ft New 41,990 Ft
Unsealed - in stock 2 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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EZVIZ Smoke detector T4C - Smoke Detector
EZVIZ Smoke detector T4C
-6 % off new 14,690 Ft New 15,690 Ft
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features: test button and temporary...
Added to cart
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Homematic IP Smoke detector HmIP-SWSD-2 - Smoke Detector
Homematic IP Smoke detector HmIP-SWSD-2
-28 % off new 13,390 Ft New 18,630 Ft
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy at the price for both existing and new AlzaPlus+ members 12,720 Ft
Smoke Detector - battery-powered , detection reach 40 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: test button, cover material plastic, operating...
Added to cart
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QINGPING CO2 & Temperature & RH Monitor - Air Quality Meter
QINGPING CO2 & Temperature & RH Monitor
-9 % off new 30,890 Ft New 33,990 Ft
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects gas, temperature, humidity, measurement range from 400 to 9999 ppm, temperature measurement from -20 to 50 °C with accuracy 0.5 °C, humidity measurement...
Added to cart
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MOES Smoke Detector, Zigbee - Smoke Detector
MOES Smoke Detector, Zigbee
-44 % off new 8,290 Ft New 14,890 Ft
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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,...
Added to cart
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Airthings Wave Enhance - Air Quality Meter
Airthings Wave Enhance
-9 % off new 59,790 Ft New 66,390 Ft
As good as new - in stock 1 pcs
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), CO₂ (carbon dioxide), noise, battery-powered, visual signals, notifications via...
Added to cart
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SAFE Fire Guard, white - Sensor
SAFE Fire Guard, white
-7 % off new 13,990 Ft New 15,170 Ft
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - wireless fire detector with groundbreaking dual-spectrum detection and SIC technology, It can operate in a SAFE system or completely autonomously. Battery powered for up...
Added to cart
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AQARA Multi-State Sensor P100 Kit (VB-S03DW), white - Vibration Detector
AQARA Multi-State Sensor P100 Kit (VB-S03DW), white
-14 % off new 10,890 Ft New 12,690 Ft
Unsealed - in stock 1 pcs
2 colors
Order by midnight, get it at the AlzaBox in the morning.
Info
Vibration Detector - detects Opening windows and doors, vibration and Angle gas, battery-powered, compatible with Apple Home, Google Home and Aqara Home, connection via radio...
Added to cart
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AQARA Multi-State Sensor P100 Kit (VB-S03D), grey - Vibration Detector
AQARA Multi-State Sensor P100 Kit (VB-S03D), grey
-9 % off new 11,490 Ft New 12,690 Ft
Unsealed - in stock 1 pcs
2 colors
Order by midnight, get it at the AlzaBox in the morning.
Info
Vibration Detector - detects Opening windows and doors, vibration and Angle gas, battery-powered, compatible with Apple Home, Google Home, Samsung SmartThings and Aqara Home,...
Added to cart
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EZVIZ Water leak sensor T10C - Water Leak Detector
EZVIZ Water leak sensor T10C
-7 % off new 9,290 Ft New 9,990 Ft
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 200 m, compatible with Google Home and EZVIZ, connect via WiFi 2,4 GHz, battery indication, standalone...
Added to cart
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