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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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328 Results
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 ALZADAYS10DE 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 ALZADAYS10DE. 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 1 pcs
Order Code: SAFEH26006
AQARA Multi-State Sensor P100 Kit (VB-S03D), grey
Vibration Detector - detects Opening windows and doors, vibration and Angle gas, battery-powered, compatible with Apple Home, Google Home, Samsung SmartThings and Aqara Home, connection via radio waves, adjustable sensitivity, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
New arrival 30.90 €
Buy
In stock > 5 pcs
Order Code: Aqara26001
AQARA Multi-State Sensor P100 Kit (VB-S03DW), white
Vibration Detector - detects Opening windows and doors, vibration and Angle gas, battery-powered, compatible with Apple Home, Google Home and Aqara Home, connection via radio waves, adjustable sensitivity, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
30.90 €
Buy
In stock > 5 pcs
Order Code: Aqara26002
Homematic IP Window and door sensor, magnetic - HmIP-SWDM-2
Door and Window Sensor - wireless, compatible with Homematic IP, connect via Radio frequency, range of 200m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
New arrival 31.90 €
Buy
In stock 3 pcs
Order Code: Home26001
4.4
RETLUX RSH 309 Smart temperature sensor
Temperature Sensor - moisture detection, temperature measurement from -10 to 50 °C with an accuracy of 0.3 °C, moisture measurement with 3% accuracy, battery power, notification via SMS, push notifications, battery status indication, reset function and automatic scenarios, cover material plastic, operating temperature from -10 to 50 °C, operating humidity from 0 to 95%, input voltage 3 V, battery and mounting kit included, independently functional unit central unit required for functionality, applications in Czech and English, compatible with Android and iOS
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. 13.52 €
15.90 €
Buy
In stock > 10 pcs
Order Code: RTLX25041
4.1
RETLUX RSH 307 Smart door/window sensor
Door and Window Sensor -, compatible with Google Home, connect via Radio frequency, battery indication, central unit required
Discounted -5 % 15.90 € 16.90 €
Buy
In stock > 5 pcs
Order Code: RTLX25039
5.0
Shelly Gen4 Flood, flood sensor, Bluetooth
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 2 m, sound level: 50dB, compatible with Apple Home, Google Home, Manufacturer app and Home Assistant, connect via WiFi 2,4 GHz and Bluetooth, battery indication, standalone functional unit,, app with Czech language support, app with Czech and English language support for Android, Windows and iOS
36.90 €
Buy
In stock > 5 pcs
Order Code: Shell25034
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
5.0
QINGPING Temperature & RH Monitor Pro S Wi-Fi
Sensor - professional temperature and humidity monitoring for greenhouses, factories, warehouses, business centers, supermarkets and hospitals, temperature range -20 to 50 °C, humidity range 0-99.9%, support extreme indoor conditions, connectivity option - LoRa (gateway required), NB-IoT (50 MB of free data per year) or Wi-Fi, regular reporting of traffic and over-limits, wireless remote monitoring, instant alerts when the set values are exceeded, 2600 mAh rechargeable battery with USB power supply, multi-stage alert settings
40.90 €
Buy
In stock > 5 pcs
Order Code: QGP006a
4.5
MOES Mini CO Detector, grey
Gas Leak Detector - measurement range from 0 to 1000 ppm, deviation 100 ppm, reaction time 2 s, acoustic signals, battery indication and display, features alarm, cover material plastic, operating temperature from -10 to 50 °C,, input voltage 24 V, power cable included, standalone unit
39.90 €
Buy
In stock > 5 pcs
Order Code: Moes2512
5.0
MOES Temperature and humidity probe, WiFi
Sensor Temperature and humidity sensor with LCD screen, Infrared induction switch for bright backlighting
24.90 €
Buy
In stock > 10 pcs
Order Code: Moes2514
2.0
MOES Human Presence Sensor + Light Sensor, WiFi
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion, Light and Human presence compatible with Tuya, Smartlife and MOES, range: lighting, security and home control, power supply: USB,
22.90 €
Buy
In stock > 5 pcs
Order Code: Moes2515
2.5
MOES Temperature and humidity probe, Bluetooth
Sensor - Bluetooth 4.2, LCD display, temperature measurement -10-50 °C, humidity 0-99%, accurate data in real time, connection to the MOES application, clever gateway scenes, compact dimensions 43 × 42.5 × 11.8 mm
12.90 €
Buy
In stock > 10 pcs
Order Code: Moes2511
3.7
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
28.45 €
Buy
In stock 4 pcs
Order Code: IMMX25027
EZVIZ Smart Sensor Kit, 4 pieces, KIT 2.0
Sensor – set of 4 smart sensors for the home, PIR sensor, opening sensor, SOS button, A3-R200 gateway, Compatible with Apple Home and Matter, control via EZVIZ application, support up to 64 devices, immediate alerts, Google Assistant and Alexa voice control, easy installation, compact design
124.90 €
Buy
In stock > 5 pcs
Order Code: EZVIZ25013
4.4
Meross Smart Temperature and Humidity Sensor MS130-EU
Sensor – Temperature sensor, humidity and light, Protocol Matter, Large 3.7" display, 4th generation Swiss sensors, Apple HomeKit support, Google Assistant, Alexa and SmartThings, two programmable buttons, 4× AA batteries with a lifetime of up to 3 years, data export up to 2 years back, ideal for the bedroom, cellar or greenhouse
32.90 €
Buy
In stock > 5 pcs
Order Code: Mer2501
Xtend Home EZS-DWD01
Door and Window Sensor - wireless, compatible with Tuya, connect via Radio frequency, battery indication and adjustable sensitivity, range of 200m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
8.49 €
Buy
In stock > 10 pcs
Order Code: Xtend25012
4.0
Netatmo 2x Smart AC Controller
Smart Wireless Remote to the air conditioning, smart, WiFi 2.4 GHz, iOS apps, Android, compatible with Apple HomeKit, Google Home, Amazon Alexa
207.90 €
Buy
In stock 2 pcs
Order Code: Neta2401
4.1 21×
MAKETOP Y-10D DC sensor doorbell, white
Motion Sesnor , connect through Radio frequency with detection motion, range: security, power supply: Battery-Powered and USB,
11.90 €
Buy
In stock > 10 pcs
Order Code: MaTo23_11
2.7
Niceboy ION ORBIS Vibration Sensor
Vibration Detector - detects Glass breakage and vibration gas,, compatible with Niceboy ION, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Buy with code ALZADAYS40DE The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 40 % Rabatt mit dem Code ALZADAYS40DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 13.74 €
22.90 €
Buy
In stock 1 pcs
Order Code: NCB23_007
5.0
XtendLan PS-IR02
TV Remote Control -, range 0.03 m, infra-red transmission technology
14.90 €
Buy
In stock 3 pcs
Order Code: Xten_22_24
5.0
iQtech Millennium, Zigbee 2x NoN switch Smartlife, black
Light Switch - for lighting, operates: Via central unit / bridge, compatible with Tuya and Smartlife, power supply: Power plug, works with Android and iOS, application in Czech
16.06 €
Buy
In stock 1 pcs
Order Code: iQtech22_13
GARNI 080Q Wireless outdoor air quality sensor
Sensor Wireless outdoor air quality sensor for the GARNI 3055 Arcus Wi-Fi weather station.
72.90 €
Buy
In stock 2 pcs
Order Code: Garni22_03
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
In stock 1 pcs
Order Code: Garni22_04
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Smart Home Sensors & Detectors

Smart Home Sensors & Detectors

In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 328 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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