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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550 Results
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Ajax MotionCam Black
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Ajax, range: security, application in English, Czech, German and Slovak, power supply: Battery-Powered,
  166.40 €
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Order Code: AJAX20001
3.0 1×
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EMOS GoSmart PIR sensor (motion sensor) with night light, Wi-Fi
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, range: lighting, application in English, Czech, German, Slovak, Hungarian and In Polish, power supply: Power plug,
  22.16 €
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Order Code: EMOS24145
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EMOS GoSmart Water Leak Detector P56000S, ZigBee
Water Leak Detector - detects Water gas, battery-powered, sound level: 85dB, compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  27.91 €
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Order Code: EMOS24054
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EMOS Microwave sensor (motion sensor) IP20, 1200 W, 360°, built-in
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
  19.98 €
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Order Code: EMOS26068
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EMOS Twilight Sensor 1800 W IP65 White
Sensor operating time 1 hour – 9 hours, IP65 protection rating, sensor type: twilight sensor, power supply 220–240 V~, dimensions 105 × 67 × 34 mm, warranty period 5 years
New arrival 13.72 €
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Order Code: EMOS26182
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EMOS Microwave Presence Sensor, IP20, 24 GHz, 2000 W, white, 6 m range
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
New arrival 28.32 €
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Order Code: EMOS26181
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EMOS PIR sensor (motion sensor), IP65 1200 W, white
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
New arrival 16.64 €
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Order Code: EMOS26176
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EMOS PIR sensor (motion sensor), IP65, 2000 W, white
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
New arrival 16.64 €
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Order Code: EMOS26174
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EMOS PIR sensor (motion sensor), IP20, 1200 W, white
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
New arrival 14.14 €
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Order Code: EMOS26179
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EMOS Microwave Presence Sensor, IP20, 24 GHz, 2000 W, white, 3 m range
Motion Sesnor , closed system with detection motion and Human presence, range: lighting, power supply: Power plug,
New arrival 28.32 €
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Ordered on request
Order Code: EMOS26180
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EMOS PIR sensor (motion sensor), IP20, 500 W, white
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
New arrival 19.14 €
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Order Code: EMOS26178
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EMOS PIR DALI sensor (motion sensor), IP54, white
Motion Sesnor , open system with detection motion, range: lighting, power supply: Power plug,
New arrival 39.58 €
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Order Code: EMOS26177
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EMOS PIR sensor (motion sensor), IP65, 2000 W, black
Motion Sesnor , closed system with detection motion, range: lighting, power supply: Power plug,
New arrival 16.64 €
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Order Code: EMOS26175
4.8 31×
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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  17.15 €
Currently Unavailable
Order Code: NU106b
4.7 33×
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SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable
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
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 16.72 €
  20.90 €
Currently Unavailable
Order Code: SNFa110
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
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 13.52 €
  16.90 €
Currently Unavailable
Order Code: SNFa104
4.9 49×
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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
  8.39 €
Currently Unavailable
Order Code: SNFa056
5.0 12×
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Ajax MotionProtect White
Motion Sesnor , connect through Radio frequency with detection motion compatible with Ajax, range: security, application in English and Czech, power supply: Battery-Powered,
  89.88 €
Currently Unavailable
Order Code: AJAX5328
4.6 12×
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iGET HOME XP1B - wireless PIR motion sensor for iGET HOME X1 and X5 alarm
Motion Sesnor with detection motion, range: security, power supply: Battery-Powered,
  10.90 €
Currently Unavailable
Order Code: iGET23_013
5.0 2×
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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,
  117.77 €
Currently Unavailable
Order Code: AJAX8227
5.0 4×
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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
  80.59 €
Currently Unavailable
Order Code: AJAX9999
5.0 9×
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Ajax FireProtect White
Smoke Detector - detects temperature, temperature measurement from 0 to 65 °C, battery-powered , reaction time 12 s, notifications via push notifications, signal volume 85 dB, protection against sabotage, features: alarm, cover material plastic, operating temperature from 0 to 65 °C, operating humidity up to 80 %, holder and battery included, standalone unit requires a central hub, compatible with Android and iOS
  96.08 €
Currently Unavailable
Order Code: AJAX8209
5.0 9×
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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
  142.56 €
Currently Unavailable
Order Code: AJAX8219
4.3 7×
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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
  18.48 €
Currently Unavailable
Order Code: Shell23_024
In the category Smart Home Sensors & Detectors on Alza.sk, we currently have a total of 549 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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