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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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526 Results
4.6 13×
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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,
28.90 €
Currently Unavailable
Order Code: Shell23_034
5.0
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Ajax FireProtect Plus White
Smoke Detector - detects CO (carbon monoxide), temperature, temperature measurement from 0 to 65 °C, battery-powered , notifications via push notifications, protection against sabotage, features: alarm, cover material plastic, operating temperature from 0 to 65 °C, operating humidity up to 80 %, holder included, standalone unit requires a central hub
141.08 €
Currently Unavailable
Order Code: AJAX8219
4.7 40×
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SwitchBot Thermo/Hygrometer Indoor/Outdoor
Sensor - measures temperature and humidity, mobile apps, degree of protection IP65, strap for hanging, updates the measured values every 4 seconds, for remote synchronisation or control by voice assistants a central unit is required (not included)
16.90 €
Currently Unavailable
Order Code: SwBot21_26
4.3
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iGET SECURITY EP24 - indoor siren, battery or microUSB power supply for iGET M5-4G alarm
Siren - closed system, area of use: security, OS supported: Android and iOS, power supply: Power plug and Battery-Powered, in Czech and English
40.90 €
Currently Unavailable
Order Code: iGt21026
4.7 48×
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Elektrobock CN11 Mini
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
7.19 €
Currently Unavailable
Order Code: ELBOCK034
5.0
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Ajax MotionProtect Plus White
Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Ajax, range: security, application in English, power supply: Battery-Powered,
116.53 €
Currently Unavailable
Order Code: AJAX8227
4.7 27×
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Elektrobock LX39 White
Motion Sesnor with detection motion, range: lighting and electrical installation, power supply: Power plug,
12.90 €
Currently Unavailable
Order Code: ELBOCK041
5.0
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Ajax DoorProtect Plus White
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, deviation angle adjustment and protection against sabotage, range of 1000m, central unit required, supported OS: Android, Windows and iOS, application in English
79.75 €
Currently Unavailable
Order Code: AJAX9999
4.8 18×
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Elektrobock CN-Y01
Motion Sesnor , closed system with detection motion, range: lighting and electrical installation, power supply: Power plug,
12.90 €
Currently Unavailable
Order Code: ELBOCK072
4.3
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Shelly Blu window and door sensor, Bluetooth, black
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
21.90 €
Currently Unavailable
Order Code: Shell23_024
4.6 17×
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Elektrobock CN12
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
7.99 €
Currently Unavailable
Order Code: ELBOCK035
4.1 30×
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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  11.44 €
Currently Unavailable
Order Code: RY203h
3.6 19×
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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
25.90 €
Currently Unavailable
Order Code: Mer24_10
5.0
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Ajax MotionProtect Curtain White
Motion Sesnor , connect through Radio frequency with detection motion compatible with Ajax, range: security, application in English, power supply: Battery-Powered,
110.42 €
Currently Unavailable
Order Code: AJAX20005
4.8 12×
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Ajax DoorProtect White
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, range of 1200m, central unit required, supported OS: Android, Windows and iOS, application in English
58.27 €
Currently Unavailable
Order Code: AJAX7063
5.0
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Ajax LeaksProtect White
Water Leak Detector - detects Water gas, battery-powered, range: 1300 m, reaction time: 0,15s, compatible with Ajax, connection via radio waves, protection against sabotage, central unit required to function, app with English language support for Android and iOS
61.17 €
Currently Unavailable
Order Code: AJAX8050
4.4 12×
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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
23.90 €
Currently Unavailable
Order Code: SwBot2403
3.7
Watch Price/Availability
Meross Smart Water Leak Sensor Kit
Sensor - water leak sensor, for a safe home, It works 24/7, powered by replaceable CR123A battery (lifetime 18 months), battery indicator, IP67 waterproof, alerts via the app, 60 dB alarm, Meross Hub central unit is required for sensor functionality
30.90 €
Currently Unavailable
Order Code: Mer24_13
4.7 23×
Watch Price/Availability
EVOLVEO wireless PIR motion sensor for Alarmex/Sonix with tamper protection
Motion Sesnor , closed system with detection motion, range: security, power supply: Battery-Powered,
from  20.20 €
Currently Unavailable
Order Code: RY203g
4.7 10×
Watch Price/Availability
Elektrobock CV701
Moisture Meter humidity, analog, 230V power supply, triac, switching power 15 - 200W, relative humidity measurement 20% - 95%, for switching the fan, made in the Czech Republic
20.90 €
Currently Unavailable
Order Code: ELBOCK112
4.8 54×
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Elektrobock CN09 White
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
8.59 €
Currently Unavailable
Order Code: ELBOCK033
4.7 11×
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Elektrobock CN15
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
9.69 €
Currently Unavailable
Order Code: ELBOCK036
3.8 18×
Watch Price/Availability
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
12.90 €
Currently Unavailable
Order Code: Moes2517
4.7
Watch Price/Availability
Electrobock CN15F with 2 sensors
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
14.90 €
Currently Unavailable
Order Code: ELBOCK143
In the category Smart Home Sensors & Detectors on Alza.sk, we currently have a total of 526 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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