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Smart Home Sensors & Detectors


SmartHome detectors and sensors are designed both for connection to central units and for stand-alone use without them. These are, for example, motion sensors, smoke, gas or CO detectors or anti-flood detectors. All the sensors work with smartphones, so you always have a full overview of what's going on in your home.

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Installing a SmartHome system is easy

The installation of various detectors and sensors is user-friendly and does not require any construction modifications or complicated wiring, as these expansion modules communicate wirelessly.

Pay attention to compatibility

When choosing expansion modules, it is important to focus on the communication protocol.

  • Some accessories require a connection to the central unit. The purchased module must be built on the same communication protocol as this unit, such as ZigBee or Z-Wave. Otherwise, the two devices will not communicate.
  • Other devices work independently, for example via Bluetooth or Apple HomeKit. They can be controlled via the manufacturer's app and don't require a central unit to work.

SmartHome detectors and sensors have many uses

There are a number of detectors and sensors on the market, so we sort them into groups for better clarity.

  • Motion detectors
  • Motion detectors for windows or doors
  • Smoke, gas or carbon monoxide detectors
  • Vibration detectors
  • Flood detectors
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345 Results
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
53.90 €
Currently Unavailable
Order Code: iGt21012
4.9
FIBARO Radiator Thermostat Sensor
Heating Set - for FIBARO Radiator Thermostat Head, Bluetooth
24.90 €
Currently Unavailable
Order Code: FIBR01b1
4.8
iGET SECURITY P2 - wired PIR motion detector for iGET SECURITY M3B and M2B
Motion Sesnor , connect through Radio frequency, open system with detection motion, range: security, power supply: Power plug,
16.90 €
Currently Unavailable
Order Code: NU105d
4.2
EVOLVEO wireless vibration detector for Alarmex/Sonix
Vibration Detector - detects Opening windows and doors and vibration gas,, range: 40 m, standalone functional unit
15.90 €
Currently Unavailable
Order Code: RY202f3
5.0
EVOLVEO mini siren for Alarmex/Sonix
Siren - closed system, area of use: security
from  11.31 €
Currently Unavailable
Order Code: RY202r
3.8 18×
MOES Temperature and humidity probe, ZigBee
Sensor - ZigBee connection (requires a gateway), accurate measurement of temperature -10 to 60 °C and humidity 0-99%, real-time data in MOES, Tuya / Smart Life support, smart scenes and automation, compact dimensions 43 × 42.5 × 11.8 mm, light weight 21 g
14.90 €
Currently Unavailable
Order Code: Moes2545
1.8
EVOLVEO WiFi SOS, smart emergency SOS button
SOS Button SOS button - Smart Life app, WiFi network, one-button alarm with tow rope, sound and light alarm, recording history and tracking battery status in the app, support for automated scenes, easy installation without interference to the mains, helps in crisis situations, batteries: AA, stand-alone functional unit
16.90 €
Currently Unavailable
Order Code: EVO23_023
2.1
Sonoff MS01 Smart Soil Moisture Sensor
Sensor - humidity sensor, waterproof (IP55), compatible with Sonoff TH Origin/Elite sensor, cable 50 cm long, support for voice assistants, operating temperature 0 to 60 °C, humidity measurement 0-99% RH, RJ9 4P4C connector
18.90 €
Currently Unavailable
Order Code: SNFa058
3.8 18×
MOES Temperature and humidity probe, WiFi
Sensor - WiFi 2.4 GHz without gateway, alerts for temperature and humidity changes, compatibility with Tuya / Smart Life, push notifications, Alexa and Google Assistant support, LCD display, clever scenes, up to 1 year on 2× AAA batteries, easy assembly, compact design
12.90 €
Currently Unavailable
Order Code: Moes2517
MOES Vibration Sensor, Zigbee
Vibration Detector - detects vibration gas, battery-powered, range: 30 m, compatible with Tuya and Smartlife, connect via WiFi 5 GHz, battery indication and adjustable sensitivity, central unit required to function, app with English language support for Android and iOS
18.90 €
Currently Unavailable
Order Code: Moes2504
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 - 25.41 €/pcs
Buy with code ALZADAYS50AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 50 % Rabatt mit dem Code ALZADAYS50AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 25.41 €
50.82 €
Currently Unavailable
Order Code: WiZ25002
2.8
Nedis switch RFWS20WT
Toggle Switch RF, smart, wall-mounted, range 30 m, Double, White colour
11.90 €
Currently Unavailable
Order Code: NDS_21_02
5.0
SONOFF AirGuard CO2 Matter Over Wi-Fi Air Quality Monitor SAWF-08P
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, gas detection sensitivity 50 ppm, temperature measurement from 0 to 50 °C with accuracy 0.5 °C, humidity measurement from 5 to 99 % with accuracy 3 %, acoustic, visual signals, notifications via push notifications, display, features: alarm, cover material plastic, operating temperature from -10 to 50 °C,, input voltage 5 V, power cable included, compatible with Apple Home, Google Home, Samsung SmartThings, eWeLink and Home Assistant, standalone unit, app language options: Czech and English, compatible with Android and iOS
New arrival 65.90 €
Currently Unavailable
Order Code: SNF2611
5.0
EVOLVEO SecuPro wireless PIR motion sensor
Motion Sesnor , connect through WiFi 2,4 GHz and WiFi 5 GHz with detection motion compatible with Tuya, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
19.90 €
Currently Unavailable
Order Code: EVO24008
Ubiquiti UniFi SuperLink Environmental
Sensor - Temperature, humidity, light and water, SuperLink, CR123A battery, IPX5
New arrival 49.90 €
Currently Unavailable
Order Code: Ubiq26354
EMOS GoSmart PIR sensor (motion sensor) IP20, 60°, ZigBee
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Lidl Home, Smartlife and EMOS GoSmart, range: lighting and security, application in English, Czech, German, Slovak, Hungarian, In Polish, In Spanish, In French and In Italian, power supply: Battery-Powered,
New arrival 19.66 €
Currently Unavailable
Order Code: EMOS26065
Nice battery operated CO sensor
Air Quality Meter - detects CO (carbon monoxide), temperature measurement from -20 to 100 °C with accuracy 0.5 °C, battery-powered, acoustic signals, notifications via push notifications, battery indication, features: alarm, cover material plastic, operating temperature from 0 to 55 °C,, battery included, requires a central hub, app language options: Czech and English
136.90 €
Currently Unavailable
Order Code: Nice26020
39.90 €
Currently Unavailable
Order Code: Nice26021
Nice battery operated motion sensor
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion compatible with Manufacturer app, range: lighting, security and home control, application in English and Czech, power supply: Battery-Powered,
83.90 €
Currently Unavailable
Order Code: Nice26015
Nice window/door sensor, brown
Door and Window Sensor - wireless, compatible with Manufacturer app, connect via WiFi 2,4 GHz, battery indication and protection against sabotage, central unit required, application in Czech, application in Czech and English
73.90 €
Currently Unavailable
Order Code: Nice26019
Nice battery operated smoke detector
Smoke Detector - temperature measurement from -20 to 100 °C with accuracy 0,5 °C, battery-powered , acoustic signals, notifications via push notifications, battery indication, features: alarm, cover material plastic, operating temperature from 0 to 55 °C, operating humidity from 0 to 93 %, battery included, requires a central hub, app language options: Czech and English
96.90 €
Currently Unavailable
Order Code: Nice26016
Nice battery operated flood detector
Water Leak Detector - detects Humidity gas, battery-powered, compatible with Manufacturer app, connect via WiFi 2,4 GHz, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support
96.90 €
Currently Unavailable
Order Code: Nice26017
Nice window/door sensor, white
Door and Window Sensor - wireless, compatible with Manufacturer app, connect via WiFi 2,4 GHz, battery indication and protection against sabotage, central unit required, application in Czech, application in Czech and English
73.90 €
Currently Unavailable
Order Code: Nice26018
EMOS Microwave sensor (motion sensor) IP20, 2000 W, 360°, mounted
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
New arrival 17.60 €
Currently Unavailable
Order Code: EMOS26066
 
In the category Smart Home Sensors & Detectors on Alza.at, we currently have a total of 345 products, which you can easily buy online and get quickly delivered. See all of your purchases and make orders on our easy-to-use app.
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