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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.

220 Results
4.4 8×
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MOES Gas Leakage Detector, Zigbee
Gas Leak Detector - detects natural gas, mains power supply, acoustic signals, notifications via push notifications, signal volume 70 dB, battery indication, features alarm, cover material plastic, operating temperature from -10 to 55 °C, operating humidity up to 95 %, mounting kit included, compatible with Tuya and MOES, requires a central hub, app language options: Czech and English , compatible with Android and iOS
Great price 30.90 €
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In stock > 5 pcs
Order Code: Moes22_41
4.2 13×
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Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor
Air Quality Meter - detects temperature, humidity, TVOC (volatile organic compounds), temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %, battery-powered, visual signals, notifications via push notifications, battery indication, operating temperature from 4 to 40 °C, holder and battery included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
  82.84 €
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In stock 4 pcs
Order Code: Air21TNG1
4.1 21×
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MAKETOP Y-10D DC sensor doorbell, white
Motion Sesnor , connect through Radio frequency with detection motion, range: security, power supply: Battery-Powered and USB,
Discounted -11 % 10.53 € 11.90 €
Buy
In stock
Order Code: MaTo23_11
4.5 6×
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Niceboy ION ORBIS Water Sensor
Water Leak Detector - detects Water gas,, compatible with Niceboy ION, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Amazing Deal 20.90 €
Buy
In stock 1 pcs
Order Code: NCB23_008
4.5 6×
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EVOLVEO wireless outdoor siren for Alarmex / Sonix
Siren - closed system, area of use: security, power supply: Power plug
  99.90 €
Buy
In stock 5 pcs
Order Code: RY203f
4.0 41×
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Mi Door and Window Sensor 2
Door and Window Sensor - wireless, compatible with Xiaomi Home, connect via Bluetooth, integrated daylight sensor, central unit required, supported OS: Android and iOS, application in English
  13.90 €
Buy
In stock > 10 pcs
Order Code: Xi21_01
4.6 5×
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iGET SECURITY EP10 - wireless vibration sensor for iGET M5-4G alarm
Detector vibration detection sensor for iGET SECURITY M5 alarm. It is used for windows, showcases, valuable things like TV, antiques, etc. As soon as a minor shock occurs, the sensor immediately sounds an alarm. Protection against sabotage, highest transmission security 256bit, very long battery life of 5 years, the alarm constantly monitors the activity of this sensor, also a signal, battery percentage and more.
  18.90 €
Currently Unavailable
Order Code: iGt21018
4.3 10×
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IMMAX NEO Smart water leak sensor, Zigbee 3.0
Water Leak Detector - detects Water gas, battery-powered, range: 30 m, sound level: 120dB, compatible with Google Home, Tuya, Lidl Home and Immax NEO PRO, connect via WiFi 2,4 GHz and WiFi 5 GHz, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Discounted -38 % 12.90 € 20.90 €
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In stock
Order Code: IMXX2314
4.3 9×
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iGET SECURITY P1v2 - wireless PIR motion detector
Motion Sesnor accessories for iGET SECURITY M3B and M2B alarm system - Wireless PIR motion detector for monitoring movement in the room
  17.90 €
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In stock > 5 pcs
Order Code: iGt21010
4.8 4×
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Airthings Corentium Home 2 - Smart radon detector
Air Quality Meter - detects temperature, humidity, radon, battery-powered, visual signals, notifications via push notifications, display, operating temperature from 4 to 40 °C, operating humidity to 85 %, battery included, standalone unit requires a central hub
  181.40 €
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In stock > 5 pcs
Order Code: Air25001
4.8 4×
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MOES Mini CO Detector, grey
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 plastic, operating temperature from -10 to 50 °C,, input voltage 24 V, power cable included, standalone unit
  39.90 €
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In stock 5 pcs
Order Code: Moes2512
4.8 4×
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MOES Mini CO Detector, orange
Gas Leak Detector - measurement range from 0 to 1000 ppm, reaction time 2 s, acoustic signals, battery indication and display, features alarm, cover material plastic, operating temperature from -10 to 50 °C,, input voltage 24 V, power cable included, standalone unit
  38.90 €
Buy
In stock > 5 pcs
Order Code: Moes2513
4.8 4×
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EZVIZ T1C PIR
Motion Sesnor , closed system with detection motion compatible with Google Home and EZVIZ, range: security, application in English, Czech, German and Hungarian, power supply: Battery-Powered,
Great price 26.90 €
Buy
In stock > 5 pcs
Order Code: EZVIZ23_01
5.0 3×
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SONOFF WLDC200 Water Leak Detection Cable
Extension Cable
Discounted -35 % 7.63 € 11.90 €
Buy
In stock
Order Code: SNFa109
4.2 9×
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EVOLVEO wireless vibration detector for Alarmex/Sonix
Vibration Detector - detects Opening windows and doors and vibration gas,, range: 40 m, standalone functional unit
  14.90 €
Currently Unavailable
Order Code: RY202f3
4.3 7×
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Airthings View Radon - Air Quality Monitor
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. Easily connect the air detector to the app via Wi-Fi or HUB using Airthings Smartlink. The app is compatible with both Android and iOS operating systems. Airthings View Radon also communicates with IFTTT, Google Assistant and Amazon Alexa voice assistants.
  203.90 €
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In stock > 5 pcs
Order Code: Air22TNG3
4.1 17×
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AQARA Motion and Light Sensor P2
Motion Sesnor , connect through Bluetooth, open system with detection motion and Lights compatible with Apple Home and Aqara Home, range: lighting and security, application in English, Czech, German, Slovak and In Polish, power supply: Battery-Powered,
  29.90 €
Buy
On the way > 5 pcs
Expected 21/10/2026
Order Code: Aqara24002
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
  45.90 €
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In stock 4 pcs
Order Code: HNW22_05
4.0 18×
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Gosund Intelligent Water Leak Sensor, Zigbee
Water Leak Detector - detects Water gas, battery-powered, compatible with Tuya and Manufacturer app, central unit required to function,, app with Czech language support, app with Czech and English language support for Android
Discounted -24 % 9.02 € 11.90 €
Buy
In stock
Order Code: GoSnd32
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
  85.90 €
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In stock > 5 pcs
Order Code: EMOS24070
4.5 4×
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iGET SECURITY P10 - wireless vibration detector for iGET SECURITY M3B and M2B
Vibration Detector - detects vibration gas, battery-powered, range: 80 m, connect via GSM, battery indication, central unit required to function
  8.09 €
Currently Unavailable
Order Code: NU105t
4.1 11×
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GARNI 206 OneCare
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, temperature measurement from -9.9 to 50 °C with accuracy 1 °C, humidity measurement from 1 to 99 % with accuracy 5 %, mains + battery-powered, visual signals, display, features: hours and alarm clock, cover material plastic, standalone unit
  108.90 €
Buy
In stock > 5 pcs
Order Code: GARNI2403
4.0 16×
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IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0
Motion Sesnor , open system with detection motion and Lights compatible with Apple Siri shortcuts, Tuya, Lidl Home, Smartlife, Nedis SmartLife, ETA SMART, Tesla Smart and Immax NEO PRO, range: lighting, security and home control, application in English, Czech, German, Slovak, Hungarian and In Polish, power supply: USB,
Discounted -27 % 12.90 € 17.90 €
Buy
In stock
Order Code: IMMX24071
4.7 3×
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EZVIZ T3C smart button
Smart Wireless Switch - compatible with EZVIZ, control via app on Android and iOS,connect via , application in Czech and English
  24.90 €
Buy
In stock > 10 pcs
Order Code: EZVIZ23_03
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