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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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570 Results
Wall mounted remote control - 6 buttons, anthracite - HmIP-WRC6-A
Remote Control The programmable wireless wall-mounted remote control in anthracite (HmIP-WRC6-A) is part of the Homematic IP smart home system. It has six buttons for manual control of devices or remote control of smart home system functions. The device can control lighting, blinds, shutters, garage doors, etc. Can be integrated into the 55 mm Battery Component Stand (HmIP-DS55). Colour anthracite.
2,090,-
Buy
In stock 5 pcs at the supplier's
Order Code: Home23_39
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2")
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 1100 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, standalone functional unit,, app with Czech language support for Android, Windows and iOS
6,194,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX23_023
4.6 20×
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
1,010,-
Buy
On the way > 5 pcs
Expected 29/05/2026
Order Code: Shell24_010
4.4
Somfy Wireless Sunis WireFree II io Solar Sensor
Sensor Wireless (battery operated) solar sensor, based on the measurement of solar radiation intensity, it controls one or more io drives of the household shading directly or via the TaHoma unit, can be placed on the outside of the house or apartment, saves energy, easy and quick installation, battery low indication
3,299,-
Buy
On the way 2 pcs
Expected 29/05/2026
Order Code: SOM2118
4.1 12×
SwitchBot Meter Pro (CO2)
Sensor - Bluetooth wireless connectivity, real-time data in the SwitchBot app, Android and iOS support, Google Assistant and Amazon Alexa - Matter standard only works with the hub
1,899,-
Buy
On the way > 5 pcs
Expected 31/07/2026
Order Code: SwBot2411
4.8 26×
iGET SECURITY M3P14 - wireless smoke detector for iGET SECURITY M3 and M4
Smoke Detector - battery-powered , detection reach 100 m, acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 5 to 90 %, standalone unit
from  684,-
Buy
On the way 1 pcs
Expected 05/06/2026
Order Code: NU106v5
4.6 13×
Shelly Blu Motion, Bluetooth
Motion Sesnor , connect through WiFi 2,4 GHz, WiFi 5 GHz and Bluetooth, open system with detection motion compatible with Samsung SmartThings, range: home control, application in English, Czech, German, Slovak and Hungarian, power supply: Battery-Powered,
699,-
Buy
On the way > 5 pcs
Expected 29/06/2026
Order Code: Shell23_034
4.4 10×
Shelly Smoke Plus, smoke detector, WiFi, BT (without battery - CR123A)
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features: automatic scenarios and alarm, cover material plastic, operating temperature from 0 to 55 °C, operating humidity from 30 to 95 %, battery and mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android, Windows and iOS
1,499,-
Buy
On the way > 5 pcs
Expected 26/05/2026
Order Code: Shell23_002
4.0
Philips Hue Contact sensor White
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, White colour
1,029,-
Buy
On the way 1 pcs
Expected 26/05/2026
Order Code: PHLS23015
5.0
Shelly Blu window and door sensor, Bluetooth, white
Door and Window Sensor -, compatible with Samsung SmartThings, connect via Bluetooth, battery indication and deviation angle adjustment, separately functional unit, supported OS: Android, Windows and iOS, application in Czech, application in Czech and English
460,-
Buy
On the way 2 pcs
Expected 29/06/2026
Order Code: Shell23_023
5.0
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
1,299,-
Buy
On the way 1 pcs
Expected 29/06/2026
Order Code: Anker24014
589,-
Buy
On the way > 5 pcs
Expected 19/06/2026
Order Code: EVE1004
EVOLVEO SecuPro, wireless siren with solar power
Siren - closed system, area of use: security, power supply: Battery-Powered, Solar and USB
899,-
Buy
On the way 2 pcs
Expected 29/05/2026
Order Code: EVO24013
iQtech Smartlife GW001, Zigbee 3.0 gateway, WiFi
Detector Zigbee 3.0 gateway, WiFi
999,-
Buy
On the way 1 pcs
Expected 29/05/2026
Order Code: iQ21TECH137
5.0
Somfy Thermis Wirefree II io Battery Temperature Sensor
Temperature Sensor - Wireless (battery) temperature sensor for TaHoma system suitable for interior and exterior, can control your shading or automated heating depending on outdoor/indoor temperature, TaHoma system can be set scenarios or agenda when changing temperature to control multiple devices, saves energy, easy and quick installation.
3,479,-
Buy
Ordered on request
Order Code: SOM2119
4.8 10×
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
1,029,-
Buy
Ordered on request
Order Code: PHLS23014
5.0
Woox R7305 Smart Zigbee smoke detector
Smoke Detector - detects temperature, battery-powered , detection reach 30 m, notifications via push notifications, battery indication, cover material plastic, requires a central hub, app language: English , compatible with Android and iOS
859,-
Buy
Ordered on request
Order Code: Woox24006
4.5
Somfy Indoor motion sensor
Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Manufacturer app, range: security, application in English and Czech, power supply: Battery-Powered,
2,049,-
Buy
Ordered on request
Order Code: SOMA05
5.0
EVOLVEO Alarmex Pro (ACSALMSMK) wireless smoke detector
Smoke Detector - mains power supply, detection reach 80 m, acoustic signals, signal volume 90 dB, features: test button, cover material plastic, operating temperature from 0 to 55 °C, input voltage 9 V, standalone unit requires a central hub
689,-
Buy
Ordered on request
Order Code: EVO22_08
3.3
Nedis ZBDCO11WT
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features alarm, cover material plastic, operating temperature to 50 °C, battery included, compatible with Nedis SmartLife, standalone unit, compatible with Android and iOS
1,429,-
Buy
Ordered on request
Order Code: Nedis23_002
3.0
Imou gas sensor/detector ZGA1
Gas Leak Detector - mains power supply, detection reach 200 m, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, features self-diagnostics, automatic scenarios and alarm, cover material plastic, power adapter and mounting kit included, requires a central hub, app language: English , compatible with Android and iOS
689,-
Buy
Ordered on request
Order Code: Imou23_40
4.1 37×
Tesla Smart Switch Dual ZigBee
Light Switch - for lighting and home control, operates: Via central unit / bridge, compatible with Tesla Smart, power supply: Power plug, connection: WiFi 2,4 GHz, works with Android and iOS, application in Czech and English
649,-
Currently Unavailable
Order Code: Tsl_22_13
4.8 30×
iGET SECURITY M3P1 - wireless PIR motion detector for iGET SECURITY M3 and M4
Motion Sesnor , connect through Radio frequency, open system with detection motion, range: security, power supply: Battery-Powered,
from  430,-
Currently Unavailable
Order Code: NU106b
4.6 11×
Elektrobock LX28B
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
379,-
Currently Unavailable
Order Code: ELBOCK040

Smart Home Sensors & Detectors

Smart Home Sensors & Detectors

In the category Smart Home Sensors & Detectors on Alza.cz, we currently have a total of 571 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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