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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414 Results
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
BLACK FRIDAY -10 % 20.79 € 23.21 €
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In stock
Order Code: Tsl_22_32
3.9 6×
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Meross Smart Presence Sensor (Thread)
Sensor - mmWave occupancy sensor with micro motion detection, Matter over Thread, Local control without Wi-Fi, range up to 6 m, multi-zone detection, 360° swivel bracket, IP67, CR123A battery up to 3 years
  36.90 €
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In stock > 5 pcs
Order Code: Mer2601
4.8 10×
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Philips Hue Contact sensor Black
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
  38.90 €
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In stock 1 pcs
Order Code: PHLS23014
5.0 3×
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SONOFF WLDC200 Water Leak Detection Cable
Extension Cable
Great price 12.89 €
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In stock > 10 pcs
Order Code: SNFa109
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
3.9 34×
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IMMAX NEO LITE Smart pool temperature sensor + 2x indoor temperature and humidity sensor
Temperature Sensor - TUYA, 2.4GHz WiFi connection, indoor and outdoor unit, monitoring the current pool water temperature, indoor temperature and humidity, date and time controlled from the internet with manual settings, alarm clock with snooze option, viewing the measured values in Immax NEO PRO, iOS compatible, Android, supports Apple Siri shortcuts, TUYA and LIDL systems
  58.90 €
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In stock > 5 pcs
Order Code: IMMX25001
4.8 43×
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IMMAX NEO Smart magnetic sensor for doors and windows, Zigbee 3.0
Detector - protects your home, requires connection to a smart gateway or other Zigbee 3.0 hub, alerts via mobile app, range up to 30 m, runs on a 3V CR2032 battery
  14.03 €
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In stock > 10 pcs
Order Code: IMMX_22_31
4.9 50×
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Sonoff THS01 Temperature & Humidity Sensor
Sensor - replacement sensor for temperature and humidity measurement, compatible with Sonoff TH Origin/Elite, 50 cm long cable, operating temperature -40 to 85 °C, RJ9 4P4C connector
  8.09 €
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In stock > 10 pcs
Order Code: SNFa056
4.0 2×
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AVATTO Zigbee Smart Humidity & Temperature Sensor
Sensor -Zigbee temperature and humidity sensor, compatible with Tuya and ZigBee, Support for Alexa and Google Assistant voice control, clear LCD display, automation of ventilation, air conditioners and humidifiers, high accuracy ±1 °C / ±5 % RH, CR2430 battery power supply, table and wall mounting, white design
Amazing Deal 16.04 €
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In stock > 10 pcs
Order Code: AVT061a
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ONDILO ICO Spa V2 Essential +, smart water monitor and calibration kit - Cl/Br disinfection
Detector - smart water monitor, for monitoring the water quality in the hot tub, compatible with chlorine and bromine sanitizers, intuitive, low maintenance
Amazing Deal 478.90 €
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In stock 2 pcs
Order Code: ONDa26002
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 > 5 pcs
Order Code: Mer2501
4.0 5×
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Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi
Detector - Shelly GAS is a compact and highly sensitive CNG natural gas detector, bringing additional security for your home and family. Alarm: flashing LED & acoustic signal. Alarm sensitivity: 6% LEL, noise level: ?70dB. Smart switching: Yes. Local and remote control: Yes. Dimensions: 89.5mm x 89.5mm x 38mm. Connection not included. Mobile app available in Czech, Slovak, English and other languages.
Great price 49.90 €
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In stock > 5 pcs
Order Code: SHELLa0009
3.7 20×
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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
4.9 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
  26.36 €
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In stock > 5 pcs
Order Code: SNFa116
4.7 19×
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TESLA Smart Gas Sensor
Gas Leak Detector - mains power supply, detection reach 50 m, acoustic, visual signals, notifications via push notifications, features reset, cover material plastic, operating temperature from 0 to 55 °C,, ingress protection IP20, input voltage 12 V, power adapter and mounting kit included, compatible with Tuya, Smartlife and Tesla Smart, requires a central hub, app language options: Czech and English , compatible with Android and iOS
Amazing Deal 23.90 €
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In stock > 5 pcs
Order Code: Tsl_22_30
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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In stock > 10 pcs
Order Code: Govee26001
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
  49.90 €
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In stock 4 pcs
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
  25.70 €
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In stock > 5 pcs
Order Code: SNFa117
4.4 3×
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Airthings Wave Enhance
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), CO₂ (carbon dioxide), noise, battery-powered, visual signals, notifications via push notifications, features: memory, operating temperature from 0 to 45 °C, operating humidity from 5 to 95 %, battery included, standalone unit requires a central hub, compatible with Android and iOS
  149.90 €
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In stock > 5 pcs
Order Code: Air24001
4.0 18×
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Gosund Intelligent Water Leak Sensor, Zigbee
Water Leak Detector - detects Water gas, battery-powered, compatible with Tuya and Manufacturer app, central unit required to function,, app with Czech language support, app with Czech and English language support for Android
  11.90 €
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In stock > 10 pcs
Order Code: GoSnd32
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 > 10 pcs
Order Code: XI300l04
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
  22.90 €
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In stock 2 pcs
Order Code: Woox22_18
4.8 9×
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Netatmo Smart Door and Window Sensors
Door and Window Sensor - wireless, compatible with Apple Home and Manufacturer app, connect via Radio frequency, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  107.90 €
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In stock 5 pcs
Order Code: NET050b
4.3 9×
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iGET SECURITY P1v2 - wireless PIR motion detector
Motion Sesnor accessories for iGET SECURITY M3B and M2B alarm system - Wireless PIR motion detector for monitoring movement in the room
  16.90 €
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In stock > 5 pcs
Order Code: iGt21010
In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 414 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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