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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393 Results
3.4 6×
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MOES Light Sensor, Zigbee
Sensor - ZigBee connection (requires a gateway), real-time monitoring of light intensity, smart scenes via Tuya/MOES/Smart Life, automation of lighting at dusk, interactive brightness curve, up to 1 year battery life CR2032, discharge warning, easy installation with adhesive tape, compact design
  16.90 €
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Order Code: Moes2509
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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
BLACK FRIDAY -22 % 22.44 € 28.90 €
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Order Code: SwBot2514
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
  24.90 €
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In stock 2 pcs
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Order Code: NCB23_008
4.6 33×
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TESLA Smart Sensor Siren
Siren - open system, area of use: security, OS supported: Android and iOS, compatible with Tuya, Smartlife and Tesla Smart, power supply: Power plug and Battery-Powered, in Czech and English
  34.90 €
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Order Code: Tsl_22_32
4.9 17×
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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
  32.89 €
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Order Code: SNFa116
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
  17.90 €
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Order Code: Govee26001
5.0 3×
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SONOFF WLDC200 Water Leak Detection Cable
Extension Cable
Amazing Deal 9.88 €
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Order Code: SNFa109
4.8 5×
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Philips Hue Contact sensor Black 2pcs
Sensor - security sensor on the windows, door or safe, sends an alert or triggers a preset light alarm, includes a magnetic counterpart, IP20, can be glued or screwed (material not included), bridge required for full functionality, black, 2 pcs
  66.90 €
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Order Code: PHLS23016
5.0 2×
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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 €
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Order Code: Shell25034
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
  23.90 €
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In stock 2 pcs
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Order Code: Mer2501
5.0 1×
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Tedee Door Sensor, white
Sensor - real-time door status detection, door status display in tedee app, long-open door alert, wireless operation, Bluetooth
  50.90 €
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Order Code: Tedee25005
4.9 17×
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SONOFF IP65 Zigbee LCD Smart Thermometer (Probe Version) SNZB-02LD
Digital Thermometer – IP65 waterproof design with 1.5m probe, temperature measurement even in liquids and confined spaces, 2.2″ LCD display, accuracy ±0.2 °C, measurement history up to 180 days, smart scenes and notifications, compatible with voice assistants, Zigbee 3.0 compatible
  31.90 €
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Order Code: SNFa117
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
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Order Code: QGP005a
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
BLACK FRIDAY -10 % 52.10 € 58.40 €
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Order Code: HNW22_02
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SONOFF SNZB-04PR1 Zigbee Door/Window Sensor
Door and Window Sensor -, protection against sabotage, central unit required
BLACK FRIDAY -20 % 12.62 € 15.90 €
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Order Code: SNF2642
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 36.89 €
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In stock 4 pcs
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Order Code: NCB23_003
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
  15.90 €
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Order Code: Solight22_24
1.0 1×
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IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi
Sensor - precise measurement using ultrasonic technology, suitable for any type of liquid, IP65 resistance, possibility of connection to a smart water valve, Immax NEO PRO app in Czech and 60 other languages compatible with iOS, Android, with voice assistants - Apple Siri shortcuts and TUYA systems, LIDL.
  61.50 €
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Order Code: IMMX25092
3.3 3×
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Shelly BLU Bluetooth, brown
Door and Window Sensor - wireless, compatible with Google Home, Samsung SmartThings and Manufacturer app, connect via Bluetooth, battery indication, integrated daylight sensor and adjustable sensitivity, separately functional unit, supported OS: Android, Windows and iOS, application in Czech, application in Czech and English
Great price 16.90 €
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Order Code: Shell23_035
4.2 7×
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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
  30.90 €
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Order Code: Govee26002
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,
  15.90 €
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Order Code: XI300l04
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 171.90 €
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Order Code: Air22TNG2
4.1 11×
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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
  22.90 €
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Order Code: IMXX2314
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
  49.90 €
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In stock 4 pcs
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Order Code: Mer24_13
In the category Smart Home Sensors & Detectors on Alza.at, we currently have a total of 393 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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