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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353 Results
4.0 3×
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Airthings Wave plus, black - air quality, radon, humidity, temperature, VOC, CO2 and pressure sensor
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, deviation 30 ppm, temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %, battery-powered, visual signals, notifications via push notifications, battery indication, cover material plastic, operating temperature from 4 to 40 °C, operating humidity to 85 %, battery and mounting kit included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
  259.90 €
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In stock > 5 pcs
Order Code: Air23TNG1
4.2 20×
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Netatmo Smart Carbon Monoxide Alarm
Gas Leak Detector - battery-powered, notifications via push notifications, signal volume 85 dB, battery indication, cover material plastic, compatible with Apple Home, standalone unit, app language options: Czech and English , compatible with Android, Windows and iOS
  106.90 €
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In stock 3 pcs
Order Code: NetA_21_01
5.0 2×
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Eve Water Guard - Water Leak Detector - compatible with Thread
Water Leak Detector - detects Water gas, mains power, sound level: 100dB, compatible with Apple Home, Apple Siri shortcuts and Samsung SmartThings, connect via Bluetooth, standalone functional unit, app with English language support for iOS
  94.90 €
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In stock 1 pcs
Order Code: Eve22_001
3.4 5×
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EZVIZ T51C Thermo/Hygro sensor
Sensor - temperature and humidity measurement, clear display, Zigbee 3.0, battery operation (CR2450), mobile app (central unit needed)
Amazing Deal 24.90 €
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In stock > 10 pcs
Order Code: EZVIZ23_28
4.1 9×
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AQARA Presence Sensor FP1E (PS-S03D), Zigbee
Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Aqara Home and Manufacturer app, range: lighting and security, application in English, Czech and Slovak, power supply: Power plug and USB,
  49.99 €
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In stock > 5 pcs
Order Code: Aqara24009
4.9 7×
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EZVIZ T2C
Door and Window Sensor - wireless, compatible with IFTTT and EZVIZ, battery indication, range of 200m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  29.90 €
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In stock > 10 pcs
Order Code: EZVIZ23_02
4.8 4×
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EZVIZ T1C PIR
Motion Sesnor , closed system with detection motion compatible with Google Home and EZVIZ, range: security, application in English, Czech, German and Hungarian, power supply: Battery-Powered,
  34.90 €
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In stock > 5 pcs
Order Code: EZVIZ23_01
4.5 23×
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Shelly Gen3 H&T, battery operated temperature and humidity sensor with display, WiFi, black
Detector - dimensions without stand 70 x 70 x 26 mm, with stand 70 x 70 x 45 mm, ambient temperature 0 °C to 40 °C, humidity between 30% and 70% relative humidity, 4 AA (LR6) 1.5 V batteries (batteries not included), USB Type-C power supply (cable not included)
  34.90 €
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In stock > 5 pcs
Order Code: Shell24_008
4.5 12×
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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
  44.90 €
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In stock > 5 pcs
Order Code: Shell23_002
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 €
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In stock > 5 pcs
Order Code: Aqara25017
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 €
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In stock 2 pcs
Order Code: QGP005a
4.3 7×
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Airthings View Radon - Air Quality Monitor
Air Quality Meter is designed for indoor environments where it monitors humidity, temperature and the amount of radon in the air. You use batteries or a USB cable to power it. Easily connect the air detector to the app via Wi-Fi or HUB using Airthings Smartlink. The app is compatible with both Android and iOS operating systems. Airthings View Radon also communicates with IFTTT, Google Assistant and Amazon Alexa voice assistants.
  203.90 €
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In stock > 5 pcs
Order Code: Air22TNG3
4.5 4×
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Govee Thermometer and hygrometer, Wi-Fi
Sensor - smart temperature and humidity sensor, BT + Wi-Fi connectivity, export data for up to two years, 2x AA batteries, Connectivity with Govee Home, update values every 2 seconds, custom notifications when set values are exceeded
  29.90 €
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In stock > 5 pcs
Order Code: Govee26002
3.2 8×
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EZVIZ Water leak sensor T10C
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 200 m, compatible with Google Home and EZVIZ, 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 for Android and iOS
  19.90 €
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In stock > 10 pcs
Order Code: EZVIZ23_04
4.9 10×
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Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Lights compatible with Apple Home, Google Home and Samsung SmartThings, range: lighting, security and home control, application in English and German, power supply: Battery-Powered,
  48.90 €
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In stock > 5 pcs
Order Code: Eve23_03
5.0 1×
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Govee Thermometer and hygrometer with display, Bluetooth
Sensor - smart temperature and humidity sensor with display, BT connectivity, min max values in 20 days, export data for up to two years, 2x AA batteries, Connectivity with Govee Home, update values every 2 seconds, custom notifications when set values are exceeded
  19.90 €
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In stock > 10 pcs
Order Code: Govee26001
4.9 7×
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Eufy Motion Sensor - White
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion, range: security, application in English, power supply: Battery-Powered,
  31.90 €
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In stock > 5 pcs
Order Code: AnkEuf21_01
4.4 15×
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EMOS GoSmart Smoke Detector TS380C-HW with Wi-Fi
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features: test button, cover material plastic, operating temperature from 0 to 40 °C, operating humidity from 0 to 93 %, ingress protection IP20, standalone unit, app language options: Czech and English , compatible with Android and iOS
Great price 22.90 €
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In stock > 5 pcs
Order Code: EMOS24053
4.4 9×
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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 €
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In stock > 5 pcs
Order Code: HNW22_06
4.9 16×
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Honeywell Home R200S-2 Fire detector alarm - smoke sensor (optical principle), battery operated
Smoke Detector - temperature measurement to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button and alarm, cover material plastic, operating temperature to 40 °C, operating humidity from 25 to 93 %, input voltage 3V, battery included, standalone unit
  22.90 €
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In stock > 5 pcs
Order Code: HNW22_04
4.5 21×
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Airbi CO2AIR digital carbon dioxide meter
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
  79.90 €
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In stock > 5 pcs
Order Code: Airbi24001
4.5 26×
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IMMAX NEO 3x Smart magnetic sensor for doors and windows, Zigbee 3.0
Detector - Smart magnetic sensor for windows and doors to secure your home, ZigBee 3.0, three pieces in the package, CR2032 battery, 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
  37.90 €
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In stock > 5 pcs
Order Code: IMMX_22_30
3.7 8×
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Meross Smart Water Leak Sensor Kit
Water Leak Detector - detects Water gas, mains and battery power, sound level: 60dB, compatible with Apple Home, Samsung SmartThings and Manufacturer app, connect via WiFi 2,4 GHz, central unit required to function, app with English language support for Android and iOS
  29.90 €
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In stock > 5 pcs
Order Code: Mer24_13
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 -5 % 17.90 € 18.90 €
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In stock 3 pcs
Order Code: IMMX24071
In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 353 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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