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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.
361
Results
Nedis Miniature Smoke Detector DTCTSL40WT
Smoke Detector - acoustic signals, signal volume 85 dB, features: alarm, cover material plastic, operating temperature from -10 to 50 °C, standalone unit
Buy with code
ALZADNI20
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.
27.92 €
34.90 €
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
BEFlist0018
Siemens Connected Home water leak detector SCH040ZB, ZigBee
Water Leak Detector - detects Water gas, battery-powered, reaction time: 2s, sound level: 60dB, compatible with Connected Home, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
78.60 €
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
SimS25001
Hütermann Fire detector and smoke detector
Smoke Detector - battery-powered , detection reach 3 m, acoustic signals, signal volume 85 dB, battery indication, features: alarm, operating temperature from 0 to 50 °C, operating humidity from 10 to 90 %, standalone unit
Philips Hue Enrave S white + Philips Hue Motion Sensor
Ceiling Light - LED, dimmable, luminous flux 1220 lm, adjustable light temperature, connects via Bluetooth, control via app in Czech, compatible with Apple Home, height 6,6 cm, width 26,1 cm, length 26,1 cm, IP20
Buy with code
ALZADNI15
The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart.
Získajte zľavu 15 % s kódom ALZADNI15. Kliknite a kód sa uplatní automaticky.
154.62 €
181.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
PHLS25062set
KIDDE Combination smoke detector KIDDE-K10SCO
Smoke Detector - detects CO (carbon monoxide), measurement range from 0 ppm, battery-powered , acoustic signals, signal volume 85 dB, battery indication, cover material plastic, operating temperature from 0 to 40 °C, operating humidity from 10 to 90 %, standalone unit
52.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
KIDhob008
BOT Smart Vibration Sensor VB1 Zigbee
Vibration Detector - detects vibration gas, battery-powered, range: 30 m, compatible with Tuya and Smartlife, connect via WiFi 2,4 GHz and WiFi 5 GHz, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Buy with code
ALZADNI10
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.
25.49 €
28.32 €
In stock > 5 pcs at the supplier's
Order Code:
BOTdet009
WiZ Contact sensor 2pack
Door and Window Sensor - wireless, compatible with Google Home and Manufacturer app, connect via WiFi 2,4 GHz, battery indication, night orientation light and adjustable sensitivity, range of 20m, separately functional unit, supported OS: Android and iOS, application in Czech, application in Czech and English
Tellur WiFi Smart occupancy sensor, 2.4GHz radar sensor, USB-C, white
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion compatible with Manufacturer app, range: security, power supply: USB,
QINGPING Motion & Light sensor, T version (Apple Homekit)
Motion Sesnor , connect through Bluetooth with detection motion and Lights compatible with Apple Home and Manufacturer app, range: lighting and security, application in English and Czech,
12.90 €
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
QGP005a
SIGNIFY 17476/87/PN Virginia outdoor PIR motion sensor IP44, grey
Motion Sesnor with detection motion compatible with Manufacturer app, range: security,
SIGNIFY 17476/31/PN Virginia outdoor PIR motion sensor IP44, white
Motion Sesnor with detection motion compatible with Manufacturer app, range: lighting, power supply: Power plug,
HEATIT Z-Smoke Multisensor 230VAC White, Z-Wave smoke sensor
Smoke Detector - detects motion, temperature, mains power supply, detection reach 100 m, acoustic signals, signal volume 85 dB, features: test button and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity from 0 to 85 %, ingress protection IP20, input voltage 230 V, requires a central hub, compatible with Android, Windows and iOS
165.90 €
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
HEA23_14
![Ajax WaterStop [1] (8EU) black - Remote controlled water shut-off valve (1") - Water Leak Detector](https://image.alza.cz/products/AJAX23_025/AJAX23_025.jpg?width=190&height=190)
Ajax WaterStop [1] (8EU) black - Remote controlled water shut-off valve (1")
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 1,1 m, reaction time: 5s, compatible with Ajax, connection via radio waves, battery indication, standalone functional unit,, app with Czech language support for Android, Windows and iOS
Smoot ZigBee Leak Pro
Water Leak Detector - detects Water gas, battery-powered, compatible with Apple Siri shortcuts and Tuya, connect via WiFi 2,4 GHz and WiFi 5 GHz, battery indication, central unit required to function,, app with Czech language support for Android and iOS
Buy with code
ALZADNI30
The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart.
Získajte zľavu 30 % s kódom ALZADNI30. Kliknite a kód sa uplatní automaticky.
23.06 €
32.94 €
In stock > 5 pcs at the supplier's
Order Code:
SMTphsnz5
Homematic IP Rain Sensor - HmIP-SRD
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 range of applications in conjunction with other Homematic IP devices. The device detects even the smallest amount of rain or snowfall and then transmits the information to the Central Unit (HmIP-HAP) and the connected Homematic IP devices, which react according to a predefined configuration.
159.90 €
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
Home22_37
Honeywell XH100-CSSK-A, Smart Smoke Detector X-Series (Thermal Principle), ScanApp, Battery Powered
Smoke Detector - battery-powered , acoustic signals, signal volume 85 dB, cover material plastic, standalone unit
38.84 €
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
HM040a6
Elektrobock IR28B Profi
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Amazing Deal
34.90 €
Save 4.05 €
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code:
ELBOCK032
X-Sense SC07-MR RF Combined Smoke and CO Detector for SB550 Station
Smoke Detector - detects CO (carbon monoxide), gas, measurement range from 30 to 999 ppm, battery-powered , reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, display and protection against sabotage, features: test button, hours and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
Buy with code
ALZADNI20
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.
40.72 €
50.90 €
On the way 1 pcs
Expected 19/10/2026
Order Code:
XSEN26004
X-Sense XC0C-iR Wi-Fi CO Detector
Gas Leak Detector - detects CO (carbon monoxide), measurement range from 30 to 999 ppm, battery-powered, reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, display and protection against sabotage, features test button, hours and alarm, cover material plastic, operating temperature from 4,4 to 38 °C, operating humidity from 10 to 85 %, ingress protection IP20, mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS
Buy with code
ALZADNI15
The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart.
Získajte zľavu 15 % s kódom ALZADNI15. Kliknite a kód sa uplatní automaticky.
28.82 €
33.90 €
On the way > 5 pcs
Expected 19/10/2026
Order Code:
XSEN26005
EMOS PIR sensor (motion sensor), IP20, 1200 W, white
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
EMOS Microwave Presence Sensor, IP20, 24 GHz, 2000 W, white, 6 m range
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
EMOS Microwave Presence Sensor, IP20, 24 GHz, 2000 W, white, 3 m range
Motion Sesnor , closed system with detection motion and Human presence, range: lighting, power supply: Power plug,
EMOS PIR sensor (motion sensor), IP65 1200 W, white
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
EMOS PIR sensor (motion sensor), IP20, 500 W, white
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
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