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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387 Results
4.9 16×
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SONOFF IP65 Zigbee LCD Smart Temperature Humidity Sensor SNZB-02WD
Sensor – IP65 waterproof design, temperature and humidity measurements, clear 2.2″ LCD display, high accuracy of ±0.2 °C and ±2 % RH, view history up to 180 days, smart scenes and notifications, support for voice assistants, Zigbee 3.0 compatible
Discounted -21 % 25.91 € 32.90 €
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In stock
Order Code: SNFa116
3.8 5×
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Xiaomi Mi Motion Sensor 2S
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Lights compatible with Xiaomi Home, range: lighting, security and home control, power supply: Battery-Powered,
  14.90 €
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In stock 1 pcs
Order Code: XI300l04
4.2 6×
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iQtech SmartLife TH01 Wi-Fi Temperature and Humidity Sensor with Display
Sensor iQtech® SmartLife TH01 Wi-Fi Temperature and Humidity Sensor with Display
  20.90 €
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In stock > 10 pcs
Order Code: iQtech23_02
5.0 4×
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Eufy Security Water and Freeze Sensor
Water Leak Detector - detects Water gas, battery-powered, range: 200 m, compatible with Google Home and Manufacturer app, connect via WiFi 2,4 GHz, central unit required to function, app with English language support for Android and iOS
  41.90 €
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In stock 5 pcs
Order Code: Anker24014
4.3 11×
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Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
Door and Window Sensor - wireless, compatible with Apple Home, Google Home and Samsung SmartThings, connect via Bluetooth, central unit required, supported OS: Android and iOS, application in English
  40.90 €
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In stock > 5 pcs
Order Code: Eve23_02
5.0 6×
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WOOX Smart Water Leak Sensor R7050
Water Leak Detector - detects Water gas,, compatible with Tuya, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  15.90 €
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In stock 4 pcs
Order Code: Woox22_18
3.8 5×
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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
  39.90 €
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In stock > 5 pcs
Order Code: Mer2501
4.6 16×
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QINGPING Bluetooth Alarm clock (Temperature & RH monitor) - beige
Alarm Clock - Digital, power supply: battery
Discounted -37 % 16.06 € 25.90 €
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In stock
Order Code: QGP003a
3.6 19×
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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 €
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In stock > 10 pcs
Order Code: Moes2545
4.8 27×
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TESLA Smart Water Sensor
Water Leak Detector - detects Water gas, battery-powered, range: 50 m, compatible with Tuya, Smartlife and Tesla Smart, connection via radio waves, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  27.90 €
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In stock > 5 pcs
Order Code: Tsl_22_29
5.0 1×
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Shelly DS18B20
Temperature Sensor - mains power supply, 3 m range, stand-alone unit
  7.39 €
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In stock 1 pcs
Order Code: Shell25030
4.5 6×
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Niceboy ION ORBIS Water Sensor
Water Leak Detector - detects Water 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
Amazing Deal 20.90 €
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In stock 1 pcs
Order Code: NCB23_008
5.0 5×
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Shelly-BYPASS
Switching Relay - Shelly Bypass, compatible with Shelly 1L and Shelly Dimmer 2
  4.49 €
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In stock 1 pcs
Order Code: SHELLa2118
3.9 10×
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Niceboy ION ORBIS Motion Sensor
Motion Sesnor , open system with detection motion compatible with Niceboy ION, range: home control, application in English, Czech and Slovak,
Amazing Deal 20.90 €
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In stock > 5 pcs
Order Code: NCB23_006
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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
  29.90 €
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In stock > 5 pcs
Order Code: Aqara26002
4.8 6×
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Shelly Blu H&T, battery operated temperature and humidity sensor, Bluetooth + Zigbee, Ivory
Humidity Sensor
  17.90 €
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In stock > 10 pcs
Order Code: Shell26002
5.0 1×
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QINGPING CO2 & Temperature & RH Monitor
Air Quality Meter - detects gas, temperature, humidity, measurement range from 400 to 9999 ppm, temperature measurement from -20 to 50 °C with accuracy 0.5 °C, humidity measurement with accuracy 5 %, display, features: hours, cover material plastic, input voltage 5 V, standalone unit, app language options: Czech and English, compatible with Android and iOS
  68.90 €
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In stock > 5 pcs
Order Code: QGP008a
3.6 14×
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Netatmo 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
  101.90 €
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In stock 2 pcs
Order Code: Neta23_01
5.0 1×
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Honeywell adapter for HR90, HR92, HR30 to Herz and Comap M28x1,5 valves
Heating Set - adapter for installation of Honeywell thermostatic heads on Herz and Comap radiator valves with M28 × 1.5 thread (HR92, HR90, HR30)
  11.90 €
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In stock 1 pcs
Order Code: HN21Well20
5.0 1×
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Airthings View Pollution - air quality monitor
Air Quality Meter is designed for indoor environments where it monitors humidity and temperature. 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 Pollution also communicates with IFTTT, Google Assistant and Amazon Alexa voice assistants.
Amazing Deal 169.90 €
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In stock > 5 pcs
Order Code: Air22TNG2
4.4 15×
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Flammable gas leak detector - solid state sensor, 85dB siren, battery backup
Gas Leak Detector - detects natural gas, propane-butane, LPG, deviation 1500 ppm, gas detection sensitivity 2500 ppm, combined mains + battery-powered , acoustic signals, signal volume 85 dB, features test button and alarm, cover material plastic, operating temperature to 50 °C, ingress protection IP20, input voltage 230 V, mounting kit included, standalone unit
  14.90 €
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In stock > 10 pcs
Order Code: Solight22_24
4.5 14×
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Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm
Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 3 to 330 ppm, gas detection sensitivity 28 ppm, battery-powered, detection reach 100 m, acoustic signals, signal volume 85 dB, features test button and alarm, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 25 to 95 %, input voltage 3V, battery included, standalone unit
Discounted -10 % 46.70 € 51.90 €
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In stock
Order Code: HNW22_02
3.0 1×
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Ubiquiti UniFi SuperLink Environmental
Sensor - Temperature, humidity, light and water, SuperLink, CR123A battery, IPX5
  48.90 €
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In stock > 5 pcs
Order Code: Ubiq26354
5.0 4×
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Niceboy ION ORBIS Bridge
Central Unit - used as home control, connect using WiFi 2,4 GHz and Bluetooth, communication via Niceboy ION, compatible with Android and iOS, USB power supply
Great price 36.90 €
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In stock 5 pcs
Order Code: NCB23_003
In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 387 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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