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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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577 Results
3.4
EZVIZ T51C Thermo/Hygro sensor
Sensor - temperature and humidity measurement, clear display, Zigbee 3.0, battery operation (CR2450), mobile app (central unit needed)
599,-
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: EZVIZ23_28
4.6
Elektrobock IR22A Classic
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Great price 279,-
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In stock 5 pcs
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Order Code: ELBOCK031
4.9 12×
Solight Wireless motion detector/gong
Detector volume 65 - 80 dB(A), signal range max. 40m without obstacles, operational range of motion detection 0-8m, angle of view 15° vertically, angle of view 100° horizontally, 36 adjustable melodies, 3D rotatable sensor stand, wall mounting holes, power supply 3 x AA alkaline batteries (not included), sensor 3 x AAA alkaline batteries or external USB charger 5V DC (not included)
409,-
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In stock > 5 pcs
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Order Code: Solight23_18
3.5
Sonoff PIR3-RF Small 433MHz RF PIR3 Motion Sensor
Sensor - movement, a bridge is necessary to function, the angle of view: 100°, two modes, range: 8 m, connection: radio waves, colour: white
349,-
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In stock 2 pcs
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Order Code: SNF21a054
4.6 14×
QINGPING Bluetooth Alarm clock (Temperature & RH monitor) - blue
Alarm Clock - Digital, power supply: battery, features: date
Buy with code ALZADNY15 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 15 % s kódem ALZADNY15. Klikněte a kód se uplatní automaticky. 424,-
499,-
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In stock > 10 pcs
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Order Code: QGP003c
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,-
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In stock 1 pcs
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Order Code: PHLS23015
4.2
RETLUX RSH 307 Smart door/window sensor
Door and Window Sensor -, compatible with Google Home, connect via Radio frequency, battery indication, central unit required
Buy with code ALZADNY15 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 15 % s kódem ALZADNY15. Klikněte a kód se uplatní automaticky. 339,-
399,-
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In stock > 10 pcs
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Order Code: RTLX25039
4.6 14×
QINGPING Bluetooth Alarm clock (Temperature & RH monitor) - green
Alarm Clock - Digital, power supply: battery, features: date
Buy with code ALZADNY15 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 15 % s kódem ALZADNY15. Klikněte a kód se uplatní automaticky. 424,-
499,-
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In stock > 10 pcs
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Order Code: QGP003b
4.5
Niceboy ION ORBIS Water Sensor
Water Leak Detector - detects water gas,, compatible with Niceboy ION, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Buy with code ALZADNY30 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 30% s kódem ALZADNY30. 349,-
499,-
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In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: NCB23_008
4.4
Meross Smart Temperature and Humidity Sensor MS130-EU
Sensor – Temperature sensor, humidity and light, Protocol Matter, Large 3.7" display, 4th generation Swiss sensors, Apple HomeKit support, Google Assistant, Alexa and SmartThings, two programmable buttons, 4× AA batteries with a lifetime of up to 3 years, data export up to 2 years back, ideal for the bedroom, cellar or greenhouse
Buy with code ALZADNY20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky. 639,-
799,-
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In stock > 5 pcs
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Order Code: Mer2501
4.7
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
Buy with code ALZADNY20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky. 799,-
999,-
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In stock > 5 pcs
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Order Code: Mer2415
4.4 28×
Gosund Smart Window/Door Sensor, Zigbee
Door and Window Sensor - wireless, compatible with Tuya, Smartlife and Manufacturer app, connect via WiFi 2,4 GHz, separately functional unit, supported OS: Android and iOS, application in Czech, application in Czech and English
289,-
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In stock > 10 pcs
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Order Code: GoSnd31
4.8
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
1,799,-
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In stock 4 pcs
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Order Code: PHLS23016
5.0
Airthings View Pollution - air quality monitor
Air Quality Meter is designed for indoor environments where it monitors humidity and temperature. You use batteries or a USB cable to power it. Easily connect the air detector to the app via Wi-Fi or HUB using Airthings Smartlink. The app is compatible with both Android and iOS operating systems. Airthings View Pollution also communicates with IFTTT, Google Assistant and Amazon Alexa voice assistants.
4,899,-
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In stock 3 pcs
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Order Code: Air22TNG2
4.7 23×
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  473,-
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In stock > 5 pcs
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Order Code: RY203g
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,-
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In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHLS23014
4.0
Honeywell Home R200H-N2 Interconnected fire alarm detector - temperature principle, battery operated
Temperature Sensor - interconnected fire detector, battery powered
Buy with code ALZADNY10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 10 % s kódem ALZADNY10. Klikněte a kód se uplatní automaticky. 719,-
799,-
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In stock > 5 pcs
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Order Code: HNW22_03
5.0
RETLUX RSH 308 PIR Smart Motion Sensor
Motion Sesnor , connect through Radio frequency, closed system with detection Human presence compatible with Google Home, Tuya and Manufacturer app, range: security and home control, application in English, Czech and Slovak, power supply: Battery-Powered,
Buy with code ALZADNY20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky. 319,-
399,-
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RTLX25040
5.0
Niceboy ION ORBIS Bridge
Central Unit - used as home control, connect using WiFi 2,4 GHz and Bluetooth, communication via Niceboy ION, compatible with Android and iOS, USB power supply
Buy with code ALZADNY30 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 30% s kódem ALZADNY30. 629,-
899,-
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: NCB23_003
4.0
Elektrobock CN-L01
Motion Sesnor , closed system with detection motion, range: lighting and electrical installation, power supply: Power plug,
Great price 279,- Save 20,-
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In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: ELBOCK070
4.5
Nous E6 LCD Zigbee Smart Temperature and Humidity Sensor
Sensor - LCD temperature and humidity sensor, process automation, battery power, durability of 5 years, compatible with Google Assistant, Amazon Alexa and Tuya, connection via ZigBee 3.0, apps in Czech for Android and iOS
629,-
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In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: NOUSmh010
4.0 18×
Gosund Intelligent Water Leak Sensor, Zigbee
Water Leak Detector - detects water gas, battery-powered, compatible with Tuya and Manufacturer app, central unit required to function,, app with Czech language support, app with Czech and English language support for Android
299,-
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: GoSnd32
5.0
Elektrobock CN05C
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Great price 259,- Save 20,-
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In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: ELBOCK142
5.0
MOES Temperature and humidity probe, WiFi
Sensor Temperature and humidity sensor with LCD screen, Infrared induction switch for bright backlighting
Buy with code ALZADNY20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky. 479,-
599,-
Buy
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Moes2514
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In the category Smart Home Sensors & Detectors on Alza.cz, we currently have a total of 578 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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