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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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343 Results
4.5
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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
  27.90 €
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In stock 2 pcs
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Order Code: NCB23_008
5.0
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SONOFF WLDC200 Water Leak Detection Cable
Extension Cable
  10.90 €
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In stock > 10 pcs
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Order Code: SNFa109
4.1 21×
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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 €
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Order Code: MaTo23_11
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SwitchBot Presence Sensor
Sensor - 3in1 presence detection (mmWave radar, PIR, light sensor), recognition of micro-movements and static persons, range up to 8 m (movement) / 5 m (presence), 120° angle of view, battery life up to 2 years, magnetic base with adjustable angle, local automation without hub (up to 2 scenes), Matter support via SwitchBot Hub, Compatible with Apple Home, Alexa, Google Home, Home Assistant, IPX5
  28.90 €
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Order Code: SwBot2514
4.6 14×
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QINGPING Bluetooth Alarm clock (Temperature & RH monitor) - blue
Alarm Clock - Digital, power supply: battery, features: date
  20.90 €
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Order Code: QGP003c
4.0
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Honeywell Home R200H-N2 Interconnected fire alarm detector - temperature principle, battery operated
Temperature Sensor - interconnected fire detector, battery powered
Discounted -8 % 38.50 € 41.90 €
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Order Code: HNW22_03
3.6
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EVOLVEO WiFi EYE, smart magnetic PIR motion sensor
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion compatible with Tuya, range: security, application in English, Czech, German, Slovak and Hungarian, power supply: Battery-Powered,
  11.90 €
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In stock 2 pcs
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Order Code: EVO23_021
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,
  28.90 €
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In stock 1 pcs
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Order Code: NCB23_006
4.3 10×
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IMMAX NEO Smart water leak sensor, Zigbee 3.0
Water Leak Detector - detects Water gas, battery-powered, range: 30 m, sound level: 120dB, compatible with Google Home, Tuya, Lidl Home and Immax NEO PRO, connect via WiFi 2,4 GHz and WiFi 5 GHz, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  26.90 €
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In stock 3 pcs
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Order Code: IMXX2314
3.4
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EVOLVEO WiFi DOOR, smart window/door detector
Door and Window Sensor - wireless, compatible with Smartlife, connect via WiFi 2,4 GHz, battery indication, separately functional unit, supported OS: Android and iOS, application in Czech, application in Czech and English
  11.90 €
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In stock 3 pcs
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Order Code: EVO23_020
4.7
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EVOLVEO Alarmex Pro (ACSALMRMT) remote control/key fob
Keychain -
  11.90 €
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In stock 4 pcs
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Order Code: EVO22_14
3.5
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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,
  23.90 €
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In stock 2 pcs
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Order Code: EVO22_12
3.0
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EVOLVEO Alarmex Pro (ACSALMIMS) wireless indoor siren
Siren - closed system, area of use: security, OS supported: Android and Windows, compatible with Manufacturer app, power supply: Power plug
  50.90 €
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In stock 2 pcs
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Order Code: EVO22_05
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
  64.90 €
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Order Code: HNW22_02
4.2 12×
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Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor
Air Quality Meter - detects temperature, humidity, TVOC (volatile organic compounds), temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %, battery-powered, visual signals, notifications via push notifications, battery indication, operating temperature from 4 to 40 °C, holder and battery included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
  83.87 €
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In stock 3 pcs
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Order Code: Air21TNG1
3.8
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iGET SECURITY P4v2 - wireless magnetic door/window detector for iGET SECURITY M3B and M2B
Door and Window Sensor -, compatible with iGet Home, connect via Radio frequency, range of 70m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  14.90 €
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In stock 2 pcs
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Order Code: iGt21011
4.5
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EVOLVEO wireless outdoor siren for Alarmex / Sonix
Siren - closed system, area of use: security, power supply: Power plug
  81.90 €
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In stock > 5 pcs
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Order Code: RY203f
3.7
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Meross Smart Water Leak Sensor
Sensor - water leak sensor, for a safe home, It works 24/7, powered by replaceable CR123A battery (lifetime 18 months), battery indicator, IP67 waterproof, alerts via the app, 60 dB alarm, Meross Hub central unit is required for sensor functionality
  24.90 €
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In stock 3 pcs
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Order Code: Mer24_14
3.7
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Meross Smart Water Leak Sensor Kit
Sensor - water leak sensor, for a safe home, It works 24/7, powered by replaceable CR123A battery (lifetime 18 months), battery indicator, IP67 waterproof, alerts via the app, 60 dB alarm, Meross Hub central unit is required for sensor functionality
  23.90 €
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In stock 1 pcs
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Order Code: Mer24_13
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
  36.90 €
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In stock 1 pcs
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Order Code: Shell24_011
4.9 13×
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Solight Wireless motion detector/gong
Detector volume 65 - 80 dB(A), signal range max. 40m without obstacles, operational range of motion detection 0-8m, angle of view 15° vertically, angle of view 100° horizontally, 36 adjustable melodies, 3D rotatable sensor stand, wall mounting holes, power supply 3 x AA alkaline batteries (not included), sensor 3 x AAA alkaline batteries or external USB charger 5V DC (not included)
  19.90 €
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Order Code: Solight23_18
4.8 19×
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Solight Wireless motion detector/gong
Detector volume 65 - 80 dB(A), signal range max. 40m without obstacles, operational range of motion detection 0-8m, angle of view 15° vertically, angle of view 100° horizontally, 36 adjustable melodies, 3D rotatable sensor stand, wall mounting holes, receiver power supply AC 230V~50Hz, sensor 3 x AAA alkaline batteries or external USB charger 5V DC (not included)
  16.90 €
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In stock > 5 pcs
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Order Code: Solight23_17
3.7
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Niceboy ION ORBIS Windows & Door Sensor
Door and Window Sensor - wireless, compatible with Niceboy ION, battery indication, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  27.90 €
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In stock 2 pcs
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Order Code: NCB23_009
5.0
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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
  25.90 €
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In stock 4 pcs
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Order Code: NCB23_003
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In the category Smart Home Sensors & Detectors on Alza.at, we currently have a total of 343 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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