Try our cookies Alza.cz a. s., Company identification number 27082440, uses cookies to ensure the functionality of the website and with your consent also to personalisage the content of our website. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.
Alzak icon
Catalogue
Price
-
Availability
Product type
(24)
(72)
(18)
(12)
(59)
Detection Type
(99)
(74)
(73)
(56)
(40)
Detection element
(47)
(24)
(23)
(16)
(13)
Range
1 m
1,100 m
-
Colour
(4)
(283)
(42)
(3)
(3)
Protocol
(100)
(17)
(6)
(26)
(11)

Cheap smart Home Sensors & Detectors

On this page you will find smart Home Sensors & Detectors at the lowest prices, more so all smart Home Sensors & Detectors ranked from the lowest to the highest price. It will be easier to see products that are now marked at their lowest price. The item with the lowest price in this category is Shelly-BYPASS marked at 4.89 € incl. VAT. Is this what you’re looking for?
344 Results
4.2
Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
Door and Window Sensor - wireless, compatible with Apple Home, Google Home and Samsung SmartThings, connect via Bluetooth, central unit required, supported OS: Android and iOS, application in English
Buy with code ALZADAYS20AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 20 % Rabatt mit dem Code ALZADAYS20AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 33.52 €
41.90 €
Buy
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Eve23_02
4.4
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
42.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HNW22_05
3.5
iGET SECURITY P11v2 - wireless outdoor siren (battery/adapter)
Siren - closed system, area of use: security, OS supported: Android and iOS, power supply: Power plug and Battery-Powered, in Czech and English
43.90 €
Buy
In stock 1 pcs
Order Code: iGt21012
4.8 103×
Honeywell R200C-2, Carbon monoxide detector and detector, CO Alarm
Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 3 to 330 ppm, gas detection sensitivity 28 ppm, battery-powered, acoustic signals, signal volume 85 dB, features test button, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 25 to 95 %, ingress protection IP44, input voltage 3V, battery included, standalone unit
44.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HNW22_01
4.7
Honeywell Home R200H-N2 Interconnected fire alarm detector - temperature principle, battery operated
Temperature Sensor - interconnected fire detector, battery powered
44.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HNW22_03
4.3
iGET SECURITY EP24 - indoor siren, battery or microUSB power supply for iGET M5-4G alarm
Siren - closed system, area of use: security, OS supported: Android and iOS, power supply: Power plug and Battery-Powered, in Czech and English
44.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: iGt21026
4.8 19×
AQARA Presence Multi-Sensor FP300 (PS-S04D), Zigbee, Thread
Motion Sesnor , connect through Bluetooth, open system with detection Human presence compatible with Aqara Home and Manufacturer app, range: lighting, heating and cooling and security, application in English, Czech and Slovak, power supply: Battery-Powered,
Amazing Deal 44.99 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Aqara25036
4.4 10×
Shelly Smoke Plus, smoke detector, WiFi, BT (without battery - CR123A)
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features: automatic scenarios and alarm, cover material plastic, operating temperature from 0 to 55 °C, operating humidity from 30 to 95 %, battery and mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android, Windows and iOS
45.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Shell23_002
4.4
Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi
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
46.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HNW22_06
4.4 14×
FIBARO Window and door sensor 2 white
Door and Window Sensor - wireless, compatible with Manufacturer app, connect via WiFi 2,4 GHz and Bluetooth, range of 50m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
46.90 €
Buy
In stock 2 pcs
Order Code: FIBR02hg1
SAFE Door Guard Plus, white
Sensor - wireless magnetic open, shock and tilt detector for window and door security Powered by a replaceable battery that allows continuous operation for up to 4 years, white colour
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 43.11 €
New arrival 47.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26008
Homematic IP Temperature and humidity sensor - indoor, anthracite
Sensor - wireless wall-mounted temperature and humidity sensor for indoor use, enables precise temperature control in conjunction with one or more radiator thermostatic heads or floor heating actuators, power supply 2x AAA batteries, anthracite colour
48.54 €
Currently Unavailable
Order Code: Home24011
SAFE Glass Guard, white
Sensor - wireless glass breakage detector for security of glazed surfaces equipped with two NC inputs, Multi-factor glass breakage detection with the possibility of remote sensitivity configuration significantly eliminates the occurrence of false alarms, The detector is powered by a replaceable battery that allows continuous operation for up to 3 years, colour white
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 44.01 €
New arrival 48.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26007
SAFE Indoor Siren, white
Siren - closed system, area of use: security, OS supported: Android and iOS, compatible with Manufacturer app, power supply: Battery-Powered, in Czech and English
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 44.01 €
New arrival 48.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26006
4.9 10×
Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Light compatible with Apple Home, Google Home and Samsung SmartThings, range: lighting, security and home control, application in English and German, power supply: Battery-Powered,
Buy with code ALZADAYS20AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 20 % Rabatt mit dem Code ALZADAYS20AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 39.12 €
48.90 €
On the way 1 pcs
Expected 19/04/2026
Order Code: Eve23_03
Siemens Connected Home window/door switch SCH020ZB, ZigBee
Door and Window Sensor -, compatible with Google Home, connect via Radio frequency, battery indication, range of 14m, central unit required, supported OS: Android and iOS
50.53 €
Currently Unavailable
Order Code: SimS25003
Eufy Security Siren
Siren - closed system, area of use: security, OS supported: Android and iOS, compatible with Manufacturer app, power supply: Battery-Powered, in English
Buy with code ALZADAYS25AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 25 % Rabatt mit dem Code ALZADAYS25AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 38.18 €
50.90 €
Buy
On the way 1 pcs
Expected 20/04/2026
Order Code: Anker24015
3.0
EVOLVEO Alarmex Pro (ACSALMIMS) wireless indoor siren
Siren - closed system, area of use: security, OS supported: Android and Windows, compatible with Manufacturer app, power supply: Power plug
50.90 €
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EVO22_05
SAFE Motion Guard, white
Sensor - wireless motion detector equipped with dual PIR sensor detecting motion at a distance of up to 12 meters, PET immunity up to a weight of 18 kg and 50 cm height, The detector is powered by a replaceable battery that allows continuous operation of the detector for up to 4 years, colour white
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 47.61 €
New arrival 52.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26003
5.0
Eufy Security Water and Freeze Sensor
Water Leak Detector - detects water gas, battery-powered, range: 200 m, compatible with Google Home and Manufacturer app, connect via WiFi 2,4 GHz, central unit required to function, app with English language support for Android and iOS
52.90 €
Buy
Ordered on request
Order Code: Anker24014
1.0
EVOLVEO Alarmex Pro ( ACSALMOUS) wireless outdoor light and sound siren
Siren - closed system, area of use: security, OS supported: Android and iOS, compatible with Manufacturer app, power supply: Power plug, in Czech and English
52.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EVO22_04
5.0
Tedee Door Sensor, white
Sensor - real-time door status detection, door status display in tedee app, long-open door alert, wireless operation, Bluetooth
54.90 €
Buy
In stock 5 pcs
Order Code: Tedee25005
4.8 28×
Philips Hue Outdoor Motion Sensor
Motion Sensor - for lighting, Exterior and Interior, battery powered, compatible with Apple Home and Philips Hue, independently functional unit, a central unit is required to function
55.90 €
Buy
In stock > 5 pcs
Order Code: PHL19021
4.3 22×
IMMAX NEO LITE Smart pool temperature sensor + 2x indoor temperature and humidity sensor
Temperature Sensor - TUYA, 2.4GHz WiFi connection, indoor and outdoor unit, monitoring the current pool water temperature, indoor temperature and humidity, date and time controlled from the internet with manual settings, alarm clock with snooze option, viewing the measured values in Immax NEO PRO, iOS compatible, Android, supports Apple Siri shortcuts, TUYA and LIDL systems
56.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: IMMX25001
 

Cheap smart Home Sensors & Detectors

Check out products sorted by price starting with the lowest price in the category cheap smart Home Sensors & Detectors Find products sorted from the most expensive to the cheapest in the category most expensive smart Home Sensors & Detectors Check out products sorted by price starting with the highest price in the category best sellers, best smart Home Sensors & Detectors You’ll find products sorted by reviews starting from the highest ranked in smart Home Sensors & Detectors reviews
P-DC1-WEB05

Große Auswahl und hohe Qualität Wir bieten Qualitätsprodukte von mehr als 1.500 weltbekannten Marken an. More info »