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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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321 Results
4.6 16×
NEDIS WIFIRC10CBK
TV Remote Control - universal, compatible with set-top box, air conditioner, range 5 m, infra-red transmission technology, compatible app
from  21.25 €
Buy
On the way 1 pcs
Expected 24/06/2026
Order Code: NESDV075a1
4.7 47×
IMMAX NEO LITE Smart IR remote control with temperature and humidity sensors, WiFi
Smart Wireless Remote - Smart IR, TUYA, WiFi, remote control of all devices, which are normally controlled by remote control with IR port, remote control, automation, measures temperature and humidity, Immax NEO PRO app in Czech and 60 other languages compatible with iOS, Android, with Amazon Alexa voice assistants, Apple Siri Shortcuts, Google Assistant and TUYA systems, LIDL
18.17 €
Buy
On the way > 5 pcs
Expected 04/06/2026
Order Code: IMMX_21_02
23.90 €
Buy
On the way > 5 pcs
Expected 19/06/2026
Order Code: EVE1004
4.7 13×
FIBARO Smoke Sensor
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features: alarm, operating temperature from 0 to 55 °C, operating humidity from 0 to 93 %, battery included, standalone unit requires a central hub, app language options: Czech and English
76.90 €
Buy
On the way 1 pcs
Expected 29/06/2026
Order Code: FIBR01f
5.0
GARNI 092H wireless sensor
Sensor Eight-channel wireless sensor for measuring temperature and relative humidity, designed for the GARNI 3055 Arcus Wi-Fi weather station.
42.90 €
Buy
On the way 2 pcs
Expected 08/06/2026
Order Code: Garni22_04
iQtech Smartlife GW001, Zigbee 3.0 gateway, WiFi
Detector Zigbee 3.0 gateway, WiFi
40.90 €
Buy
On the way 1 pcs
Expected 30/06/2026
Order Code: iQ21TECH137
ONDILO ICO Pool V2 Essential +, smart water monitor and calibration kit - Cl/Br disinfection
Detector - smart water monitor, water temperature sensors, water quality analysis, intuitive, low maintenance
478.90 €
Buy
On the way 2 pcs
Expected 15/06/2026
Order Code: ONDa26001
ONDILO ICO Pool V2 Essential +, smart water monitor and calibration kit - salt disinfection
Detector - smart water monitor, sensors monitoring the water temperature, water quality analysis, intuitive, low maintenance, Compatible with systems using salt for water treatment
518.90 €
Buy
On the way 1 pcs
Expected 15/06/2026
Order Code: ONDa26003
ONDILO ICO Spa V2 Essential +, smart water monitor and calibration kit - Cl/Br disinfection
Detector - smart water monitor, for monitoring the water quality in the hot tub, compatible with chlorine and bromine sanitizers, intuitive, low maintenance
478.90 €
Buy
On the way 1 pcs
Expected 15/06/2026
Order Code: ONDa26002
5.0
Woox R7305 Smart Zigbee smoke detector
Smoke Detector - detects temperature, battery-powered , detection reach 30 m, notifications via push notifications, battery indication, cover material plastic, requires a central hub, app language: English , compatible with Android and iOS
34.90 €
Buy
Ordered on request
Order Code: Woox24006
5.0
EVOLVEO Alarmex Pro (ACSALMSMK) wireless smoke detector
Smoke Detector - mains power supply, detection reach 80 m, acoustic signals, signal volume 90 dB, features: test button, cover material plastic, operating temperature from 0 to 55 °C, input voltage 9 V, standalone unit requires a central hub
46.90 €
Buy
Ordered on request
Order Code: EVO22_08
4.6
IMMAX NEO Smart Occupancy Sensor, Zigbee 3.0
Motion Sesnor , connect through WiFi 2,4 GHz and WiFi 5 GHz, open system with detection motion and Light compatible with Apple Siri shortcuts, Tuya and Immax NEO PRO, range: lighting, electrical installation and security, application in English, Czech, German and Hungarian, power supply: Power plug and USB,
Buy with code ALZADAYS30DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 30 % Rabatt mit dem Code ALZADAYS30DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 28.29 €
40.41 €
Buy
Ordered on request
Order Code: IMXX2333
3.0
EMOS GoSmart PIR sensor (motion sensor) with night light, Wi-Fi
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, range: lighting, application in English, Czech, German, Slovak, Hungarian and In Polish, power supply: Power plug,
21.42 €
Buy
Ordered on request
Order Code: EMOS24145
3.0
Imou gas sensor/detector ZGA1
Gas Leak Detector - mains power supply, detection reach 200 m, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, features self-diagnostics, automatic scenarios and alarm, cover material plastic, power adapter and mounting kit included, requires a central hub, app language: English , compatible with Android and iOS
42.90 €
Buy
Ordered on request
Order Code: Imou23_40
3.3
Nedis ZBDCO11WT
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features alarm, cover material plastic, operating temperature to 50 °C, battery included, compatible with Nedis SmartLife, standalone unit, compatible with Android and iOS
57.90 €
Buy
Ordered on request
Order Code: Nedis23_002
EMOS Microwave sensor (motion sensor) IP20, 2000 W, 360°, mounted
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
New arrival 17.37 €
Buy
Ordered on request
Order Code: EMOS26066
EMOS PIR sensor (motion sensor) IP20, 1200 W, 360°, mounted
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
New arrival 10.48 €
Buy
Ordered on request
Order Code: EMOS26067
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 19.40 €
Buy
Ordered on request
Order Code: EMOS26065
EMOS GoSmart Wireless door/window sensor IP-2111Z, ZigBee
Door and Window Sensor - wireless, compatible with Tuya, Lidl Home, Smartlife and EMOS GoSmart, connect via WiFi 2,4 GHz, battery indication and protection against sabotage, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
New arrival 13.32 €
Buy
Ordered on request
Order Code: EMOS26064
EMOS PIR sensor (motion sensor) IP20, 1200 W, 360°, built-in
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
New arrival 11.29 €
Buy
Ordered on request
Order Code: EMOS26063
EMOS Microwave sensor (motion sensor) IP20, 1200 W, 360°, built-in
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
New arrival 19.40 €
Buy
Ordered on request
Order Code: EMOS26068
EMOS GoSmart Water Leak Detector P56000S, ZigBee
Water Leak Detector - detects water gas, battery-powered, sound level: 85dB, compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
27.08 €
Buy
Ordered on request
Order Code: EMOS24054
4.0 13×
Meross Smart Door and Window Sensor
Door and Window Sensor - wireless, compatible with Apple Home, Samsung SmartThings and Manufacturer app, connect via WiFi 2,4 GHz, range of 100m, central unit required, supported OS: Android and iOS, application in English
Buy with code ALZADAYS15DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 15 % Rabatt mit dem Code ALZADAYS15DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 11.82 €
13.90 €
Currently Unavailable
Order Code: Mer24_12
3.8 18×
Meross Smart Temperature and Humidity Sensor MS100F
Sensor - temperature measurement in °C or °F, measurement of humidity in %, functionality only with the Meross Hub central unit, mobile apps, notifications, battery operation (CR2477), integrated solar panel for self-powering
35.90 €
Currently Unavailable
Order Code: Mer24_10
 
In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 321 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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