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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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336 Results
4.5 24×
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SONOFF SNZB-03P Zigbee Motion Sensor
Motion Sesnor , open system with detection motion compatible with Samsung SmartThings, IFTTT and eWeLink, range: lighting, application in English and Czech, power supply: Battery-Powered,
Great price 11.90 €
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In stock > 10 pcs
Order Code: SNFa101
4.5 53×
Watch Price/Availability
SONOFF Zigbee Temperature and Humidity Sensor
Sensor - senses the temperature and humidity in the room, support for smart scenes, can be fixed to the wall with 3M tape or screw, ZigBee 3.0 protocol, requires a ZigBee Hub, compatible with Amazon Alexa and Google Home, runs on a CR2477 battery, mobile applications
  12.90 €
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In stock > 10 pcs
Order Code: Sonoff23_03
4.7 32×
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SONOFF SNZB-05P Zigbee Water Leak Sensor
Water Leak Detector - detects Water gas, battery-powered, range: 130 m, compatible with Samsung SmartThings, IFTTT and eWeLink, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  12.90 €
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In stock > 10 pcs
Order Code: SNFa108
4.8 69×
Watch Price/Availability
TP-Link Tapo S200B, Smart button
Dimmers for controlling lights, electronics and other Tapo smart devices, adjustable actions, battery operation (1× CR2032)
  16.90 €
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In stock > 10 pcs
Order Code: TP22_37
4.1 17×
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AQARA Motion and Light Sensor P2
Motion Sesnor , connect through Bluetooth, open system with detection motion and Lights compatible with Apple Home and Aqara Home, range: lighting and security, application in English, Czech, German, Slovak and In Polish, power supply: Battery-Powered,
  29.90 €
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In stock > 5 pcs
Order Code: Aqara24002
4.8
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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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In stock 1 pcs
Order Code: PHLS23016
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Philips Hue Enrave S white + Philips Hue Motion Sensor
Ceiling Light - LED, dimmable, luminous flux 1220 lm, adjustable light temperature, connects via Bluetooth, control via app in Czech, compatible with Apple Home, height 6,6 cm, width 26,1 cm, length 26,1 cm, IP20
  169.90 €
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In stock > 5 pcs
Order Code: PHLS25062set
4.8 109×
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Honeywell R200C-2, 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, acoustic signals, signal volume 85 dB, features test button, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 25 to 95 %, ingress protection IP44, input voltage 3V, battery included, standalone unit
  44.90 €
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In stock > 5 pcs
Order Code: HNW22_01
4.8 18×
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SONOFF SNZB-04P Zigbee Door/Window Sensor
Door and Window Sensor - wireless, compatible with Samsung SmartThings, IFTTT and eWeLink, range of 30m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  11.90 €
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In stock > 10 pcs
Order Code: SNFa104
4.5 53×
Watch Price/Availability
SONOFF Zigbee Temperature and Humidity Sensor 2-pack
Sensor
New arrival 30.90 €
Buy
In stock > 5 pcs
Order Code: Sonoff2303BUN
4.8 29×
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Philips Hue Outdoor Motion Sensor
Motion Sesnor , closed system with detection motion compatible with Apple Home and Philips Hue, power supply: Battery-Powered,
  49.90 €
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In stock > 5 pcs
Order Code: PHL19021
4.3 15×
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Airthings Wave plus - air quality, radon, humidity, temperature, VOC, CO2 and pressure sensor
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, deviation 30 ppm, temperature measurement with accuracy 0.1 °C, humidity measurement with accuracy 1 %, battery-powered, visual signals, notifications via push notifications, battery indication, cover material plastic, operating temperature from 4 to 40 °C, operating humidity to 85 %, battery and mounting kit included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
  289.90 €
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In stock > 5 pcs
Order Code: Air21TNG2
4.0
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Airthings Wave plus, black - air quality, radon, humidity, temperature, VOC, CO2 and pressure sensor
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, deviation 30 ppm, temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %, battery-powered, visual signals, notifications via push notifications, battery indication, cover material plastic, operating temperature from 4 to 40 °C, operating humidity to 85 %, battery and mounting kit included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
  259.90 €
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In stock > 5 pcs
Order Code: Air23TNG1
4.2 29×
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TESLA Smart Sensor Smoke
Smoke Detector - battery-powered , detection reach 50 m, acoustic, visual signals, notifications via push notifications, battery indication, features: reset, cover material plastic, operating temperature from -10 to 55 °C, operating humidity from 0 %, ingress protection IP20, input voltage 3V, 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
  18.90 €
Buy
In stock > 10 pcs
Order Code: Tsl_22_31
4.8 38×
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TP-Link Tapo S200D
Dimmers - button to control the intelligent lighting, adjustable actions, multiple light control, can be fixed with screws, with double-sided tape or on any metal surface, battery (1× CR2032) with a lifetime of up to 1 year, does not work standalone - Tapo Smart Hub (H100) is required
  18.90 €
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In stock > 10 pcs
Order Code: TP23_001
4.7
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Meross Smart Presence Sensor
Sensor - dual detection technology, accurate presence detection even without motion, range up to 12 m, intelligent lighting automation, minimising false alarms, HomeKit compatibility, Alexa, Google Home and Matter, stable and secure connection, continuous cable power supply, adjustable base, protective shield against pet detection, mounting bracket included
Great price 26.90 €
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In stock > 5 pcs
Order Code: Mer2415
3.4
Watch Price/Availability
EZVIZ T51C Thermo/Hygro sensor
Sensor - temperature and humidity measurement, clear display, Zigbee 3.0, battery operation (CR2450), mobile app (central unit needed)
Amazing Deal 24.90 €
Buy
In stock > 10 pcs
Order Code: EZVIZ23_28
5.0
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Airthings Wave Radon – air quality, radon, humidity, and temperature sensor
Air Quality Meter - detects temperature, humidity, radon, temperature measurement with accuracy 0.1 °C, humidity measurement with accuracy 1 %, battery-powered, visual signals, notifications via push notifications, cover material plastic, operating temperature from 4 to 40 °C, battery and mounting kit included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
  263.90 €
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In stock > 5 pcs
Order Code: Air21TNG3
4.0
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AQARA Vibration Sensor T1 (VB-S01D)
Vibration Detector - detects Opening windows and doors, Fall and vibration gas, battery-powered, reaction time: 1s, compatible with Apple Home and Manufacturer app, battery indication and adjustable sensitivity, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  19.99 €
Buy
In stock > 5 pcs
Order Code: Aqara25021
4.2 20×
Watch Price/Availability
Netatmo Smart Carbon Monoxide Alarm
Gas Leak Detector - battery-powered, notifications via push notifications, signal volume 85 dB, battery indication, cover material plastic, compatible with Apple Home, standalone unit, app language options: Czech and English , compatible with Android, Windows and iOS
  107.90 €
Buy
In stock 4 pcs
Order Code: NetA_21_01
4.5 35×
Watch Price/Availability
AQARA Cube T1 Pro
Smart Wireless Remote Zigbee scene controller
  22.99 €
Buy
In stock > 5 pcs
Order Code: Aqa22_10
5.0
Watch Price/Availability
Eve Water Guard - Water Leak Detector - compatible with Thread
Water Leak Detector - detects Water gas, mains power, sound level: 100dB, compatible with Apple Home, Apple Siri shortcuts and Samsung SmartThings, connect via Bluetooth, standalone functional unit, app with English language support for iOS
  95.90 €
Buy
In stock 2 pcs
Order Code: Eve22_001
4.5 23×
Watch Price/Availability
Shelly Gen3 H&T, battery operated temperature and humidity sensor with display, WiFi, white
Detector - Battery operated temperature and humidity sensor with display, WiFi, white
  51.90 €
Buy
In stock > 5 pcs
Order Code: Shell24_010
4.4 46×
Watch Price/Availability
Netatmo Smart Smoke Alarm
Smoke Detector - acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, holder and mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS
  107.90 €
Buy
In stock 5 pcs
Order Code: NET007f
 
In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 336 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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