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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388 Results
4.7 25×
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AQARA Climate Sensor W100 (TH-S04D) - Zigbee and Thread
Sensor - sensor with 3.4-inch LCD display that monitors temperature and humidity
  39.99 €
On the way > 5 pcs
Expected 19/10/2026
Order Code: Aqara25017
4.7 16×
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FIBARO Motion Sensor
Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth with detection motion, Lights and temperature, range: security, application in English, Czech, German and Slovak, power supply: Battery-Powered,
  68.90 €
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Ordered on request
Order Code: FIBR01b
4.0 5×
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Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi
Detector - Shelly GAS is a compact and highly sensitive CNG natural gas detector, bringing additional security for your home and family. Alarm: flashing LED & acoustic signal. Alarm sensitivity: 6% LEL, noise level: ?70dB. Smart switching: Yes. Local and remote control: Yes. Dimensions: 89.5mm x 89.5mm x 38mm. Connection not included. Mobile app available in Czech, Slovak, English and other languages.
  58.11 €
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Ordered on request
Order Code: SHELLa0009
5.0 1×
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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 €
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Ordered on request
Order Code: EVO22_08
4.7 13×
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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 €
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Ordered on request
Order Code: FIBR01f
4.6 7×
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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 Lights 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,
  40.37 €
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Ordered on request
Order Code: IMXX2333
4.0 3×
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EVOLVEO Alarmex Pro (ACSALMPIR) wireless PIR motion sensor
Motion Sesnor , connect through GSM, closed system with detection motion, range: security, power supply: Battery-Powered,
  26.90 €
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Ordered on request
Order Code: EVO22_12
4.4 68×
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EVOLVEO Defender D5
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, signal volume 85 dB, battery indication and display, features test button and self-diagnostics, mounting kit included, standalone unit
  27.90 €
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Ordered on request
Order Code: RY211
3.0 1×
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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,
  21.90 €
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Ordered on request
Order Code: EMOS24145
3.0 2×
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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 €
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Ordered on request
Order Code: Imou23_40
4.1 7×
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FIBARO Flood Sensor
Water Leak Detector - detects temperature and Water gas, battery-powered, connect via Bluetooth, standalone functional unit,, app with Czech language support, app with Czech and English language support for Android and iOS
  82.90 €
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Ordered on request
Order Code: FIBR01c
4.5 23×
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Shelly Gen3 H&T, battery operated temperature and humidity sensor with display, WiFi, ivory
Detector - battery operated temperature and humidity sensor with display, WiFi, ivory
Discounted -5 % 34.90 € 36.90 €
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Ordered on request
Order Code: Shell24_011
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EMOS Microwave sensor (motion sensor) IP20, 1200 W, 360°, built-in
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
  19.36 €
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Ordered on request
Order Code: EMOS26068
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IMMAX NEO Smart Temperature and Humidity Sensor with LCD, e-Ink, Zigbee 3.0
Temperature Sensor
  28.25 €
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Ordered on request
Order Code: IMMX26051
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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 €
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Ordered on request
Order Code: EMOS24054
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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
  48.90 €
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Ordered on request
Order Code: XSEN26004
4.0 4×
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IMMAX NEO Smart 3in1 PIR, occupancy and light sensor, Zigbee 3.0
Sensor - 3in1 PIR sensor, presence and lighting, Zigbee 3.0 (Tuya) is a smart device, which combines motion detection (PIR), monitoring the presence of people and measuring light levels, power supply via USB C connector, thanks to Zigbee communication, it easily connects to the Tuya smart home, Immax NEO PRO app in Czech and 60 other languages compatible with iOS, Android, Apple Siri shortcuts and further with TUYA systems, LIDL, ideal for smart lights, alarms or optimising energy consumption
Discounted -30 % 19.90 € 28.43 €
Currently Unavailable
Order Code: IMMX25027
3.3 3×
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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
Discounted -7 % 52.90 € 56.90 €
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Ordered on request
Order Code: Nedis23_002
4.3 7×
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Shelly Blu window and door sensor, Bluetooth, black
Door and Window Sensor -, compatible with Samsung SmartThings, connect via Bluetooth, battery indication and deviation angle adjustment, separately functional unit, supported OS: Android, Windows and iOS, application in Czech, application in Czech and English
  17.90 €
Currently Unavailable
Order Code: Shell23_024
3.6 19×
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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
4.6 13×
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Shelly Blu Motion, Bluetooth
Motion Sesnor , connect through Bluetooth, open system with detection motion compatible with Samsung SmartThings, range: home control, application in English, Czech, German, Slovak and Hungarian, power supply: Battery-Powered,
  28.90 €
Currently Unavailable
Order Code: Shell23_034
3.5 2×
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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 €
Currently Unavailable
Order Code: QGP005a
3.5 2×
Watch Price/Availability
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
  52.90 €
Currently Unavailable
Order Code: iGt21012
3.9 15×
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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 €
Currently Unavailable
Order Code: IMMX24071
In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 388 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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