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Detectors – Test Results

The result for detectors at several price levels is:

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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 368
FIBARO Smoke Sensor - Smoke Detector
FIBARO Smoke Sensor
1,889,-
On the way 3 pcs
Expected 29/07/2026
3 variants
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features:...
Added to cart
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Netatmo Smart Smoke Alarm - Smoke Detector
Netatmo Smart Smoke Alarm
2,599,-
On the way > 5 pcs
Expected 21/08/2026
Smoke Detector - acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, holder and mounting kit...
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
1,489,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy at the price for both existing and new AlzaPlus+ members 1,340,-
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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Elektrobock LM-107A Photoelectric Smoke Detector, 10 years Warranty - Smoke Detector
Elektrobock LM-107A Photoelectric Smoke Detector, 10 years Warranty
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , detection reach 12 m, acoustic, visual 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
1,999,-
In stock > 5 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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Elektrobock CN15 - Motion Sesnor
Elektrobock CN15
259,-
In stock 2 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
- +
FireAngel ST 622 Fire and Smoke Detector - Smoke Detector
FireAngel ST 622 Fire and Smoke Detector
629,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , acoustic signals, signal volume 85 dB, battery indication, features: test button and temporary shutdown, operating temperature from 4 to 38 °C,...
Added to cart
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Elektrobock CN-V04 - Motion Sesnor
Elektrobock CN-V04
269,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , closed system with detection motion, range: lighting and electrical installation, power supply: Power plug,
Added to cart
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Shelly Blu Motion, Bluetooth - Motion Sesnor
Shelly Blu Motion, Bluetooth
699,-
Currently Unavailable
Motion Sesnor , connect through Bluetooth, open system with detection motion compatible with Samsung SmartThings, range: home control, application in English, Czech, German, Slovak...
View
Elektrobock LX28B - Motion Sesnor
Elektrobock LX28B
379,-
In stock 2 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
- +
Elektrobock LM-218B - Gas Leak Detector
Elektrobock LM-218B
449,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), measurement range from 30 to 550 ppm, deviation 3 ppm, battery-powered, acoustic signals, signal volume 85 dB, battery indication,...
Added to cart
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AQARA Presence Sensor FP2 - Motion Sesnor
AQARA Presence Sensor FP2
2,099,-
In stock > 5 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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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
Discounted -9 % 1,269,- 1,398,-
In stock > 5 pcs
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...
Added to cart
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MOES Water Leakage Detector, Zigbee - Water Leak Detector
MOES Water Leakage Detector, Zigbee
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects water gas, battery-powered, compatible with Tuya and MOES, battery indication, central unit required to function,, app with Czech language support,...
Added to cart
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Ajax LeaksProtect White - Water Leak Detector
Ajax LeaksProtect White
1,457,-
In stock > 5 pcs at the supplier's
2 colors
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,...
Added to cart
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Ajax LeaksProtect Black - Water Leak Detector
Ajax LeaksProtect Black
1,457,-
In stock > 5 pcs at the supplier's
2 colors
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,...
Added to cart
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WOOX Smart Water Leak Sensor R7050 - Water Leak Detector
WOOX Smart Water Leak Sensor R7050
549,-
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects water gas,, compatible with Tuya, central unit required to function,, app with Czech language support, app with Czech and English language support for...
Added to cart
- +
Eufy Motion Sensor - White - Motion Sesnor
Eufy Motion Sensor - White
999,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion, range: security, application in English, power supply: Battery-Powered,
Added to cart
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MOES CO Detector, Zigbee - Gas Leak Detector
MOES CO Detector, Zigbee
799,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features...
Added to cart
- +
RETLUX RDT 301 - Gas Leak Detector
RETLUX RDT 301
649,-
Currently Unavailable
Gas Leak Detector - detects CO (carbon monoxide), measurement range from 100 to 300 ppm, gas detection sensitivity 50 ppm, battery-powered, acoustic signals, signal volume 85 dB,...
View
TESLA Smart Sensor Temperature and Humidity Display - Sensor
TESLA Smart Sensor Temperature and Humidity Display
539,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy at the price for both existing and new AlzaPlus+ members 458,-
Sensor - on the wall and on the table, measures temperature and humidity, with a display, 2 AAA batteries, white colour, dimensions 61 × 61 × 23 mm (H×W×D)
Added to cart
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iGET HOME XP1B - wireless PIR motion sensor for iGET HOME X1 and X5 alarm - Motion Sesnor
iGET HOME XP1B - wireless PIR motion sensor for iGET HOME X1 and X5 alarm
259,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor with detection motion, range: security, power supply: Battery-Powered,
Added to cart
- +
Elektrobock LX118 - Motion Sesnor
Elektrobock LX118
299,-
In stock > 5 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
- +
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
359,-
In stock > 10 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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