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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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556 Results
4.8 17×
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
399,-
Buy
On the way > 5 pcs
Expected 24/07/2026
Order Code: SNFa104
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 1 pcs
Expected 25/07/2026
Order Code: SOM2118
4.6 13×
Shelly Blu Motion, Bluetooth
Motion Sesnor , connect through 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 24/07/2026
Order Code: Shell23_034
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
On the way 1 pcs
Expected 29/07/2026
Order Code: SOM2119
4.0
Honeywell Home R200H-N2 Interconnected fire alarm detector - temperature principle, battery operated
Temperature Sensor - interconnected fire detector, battery powered
799,-
Buy
On the way 4 pcs
Expected 27/07/2026
Order Code: HNW22_03
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 27/07/2026
Order Code: PHLS23015
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
On the way 2 pcs
Expected 27/07/2026
Order Code: EVO22_08
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
4,219,-
Buy
Ordered on request
Order Code: PHLS25062set
4.4 67×
EVOLVEO Defender D5
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, signal volume 85 dB, battery indication and display, features test button and self-diagnostics, mounting kit included, standalone unit
689,-
Buy
Ordered on request
Order Code: RY211
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
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
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
4.9 22×
iGET SECURITY EP4 - wireless magnetic door/window sensor for iGET M5-4G alarm
Detector magnetic sensor for door and window opening detection, for iGET SECURITY M5 alarm. Alerts you if you forget to close the window/door when you leave. Protection against sabotage, highest transmission security 256bit, very long battery life of 5 years, the alarm constantly monitors the activity of this sensor, also a signal, battery percentage and more.
449,-
Currently Unavailable
Order Code: iGt21016
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
3.8 18×
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
349,-
Currently Unavailable
Order Code: Moes2545
3.8 18×
Meross Smart Temperature and Humidity Sensor Kit MS100F+ MSH300
Sensor - temperature measurement in °C or °F, measurement of humidity in %, functionality only with Meross Hub (included), mobile apps, notifications, battery operation (CR2477), integrated solar panel for self-powering
939,-
Currently Unavailable
Order Code: Mer24_09
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,-
Currently Unavailable
Order Code: Shell23_023
3.8 18×
MOES Temperature and humidity probe, WiFi
Sensor - WiFi 2.4 GHz without gateway, alerts for temperature and humidity changes, compatibility with Tuya / Smart Life, push notifications, Alexa and Google Assistant support, LCD display, clever scenes, up to 1 year on 2× AAA batteries, easy assembly, compact design
299,-
Currently Unavailable
Order Code: Moes2517
4.1 30×
EVOLVEO wireless opening detector for Alarmex/Sonix with tamper protection
Door and Window Sensor - wireless, connect via WiFi 2,4 GHz, battery indication, range of 80m, central unit required
from  278,-
Currently Unavailable
Order Code: RY203h
3.8 18×
Meross Smart Temperature and Humidity Sensor MS100F
Sensor - temperature measurement in °C or °F, measurement of humidity in %, functionality only with the Meross Hub central unit, mobile apps, notifications, battery operation (CR2477), integrated solar panel for self-powering
629,-
Currently Unavailable
Order Code: Mer24_10
4.8
MOES Gate & Window Sensor, Zigbee
Door and Window Sensor - wireless, compatible with Tuya, Smartlife and Manufacturer app, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
299,-
Currently Unavailable
Order Code: Moes2406
4.9
FIBARO Radiator Thermostat Sensor
Heating Set - for FIBARO Radiator Thermostat Head, Bluetooth
599,-
Currently Unavailable
Order Code: FIBR01b1
4.4 12×
SwitchBot Water Leak Detector
Sensor - detection of water level thresholds as low as 0.5 mm, loud alarm, notifications to your mobile phone via the SwitchBot app, sensor compatibility with Wi-Fi and Bluetooth, does not require assembly, IP67 waterproof, four types of alarm, works independently - no hub needed, with 2× AAA batteries (included), battery replacement once every 2 years
559,-
Currently Unavailable
Order Code: SwBot2403
In the category Smart Home Sensors & Detectors on Alza.cz, we currently have a total of 556 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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