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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552 Results
4.7 17×
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iGET SECURITY EP5 - remote control (key fob) for iGET M5-4G alarm
Wireless Controller Remote control for basic control, for iGET SECURITY M5 alarm. The following settings can be made using the rotary pushbutton: activation, deactivation, home mode, SOS. It contains one freely adjustable button on the underside.
  16.90 €
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4.6 16×
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QINGPING Bluetooth Alarm clock (Temperature & RH monitor) - green
Alarm Clock - Digital, power supply: battery, features: date
BLACK FRIDAY -20 % 16.65 € 20.90 €
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3.8 5×
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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
BLACK FRIDAY -25 % 25.09 € 33.90 €
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4.8 5×
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Philips Hue Contact sensor Black 2pcs + zľava 15 % s bridgom Philips Hue
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
  75.90 €
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Order Code: PHLS23016
4.4 15×
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EMOS GoSmart Smoke Detector TS380C-HW with Wi-Fi
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features: test button, cover material plastic, operating temperature from 0 to 40 °C, operating humidity from 0 to 93 %, ingress protection IP20, standalone unit, app language options: Czech and English , compatible with Android and iOS
  32.90 €
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Order Code: EMOS24053
4.0 3×
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EVOLVEO Alarmex Pro (ACSALMPIR) wireless PIR motion sensor
Motion Sesnor , connect through GSM, closed system with detection motion, range: security, power supply: Battery-Powered,
  19.90 €
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Order Code: EVO22_12
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 €
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4.6 16×
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QINGPING Bluetooth Alarm clock (Temperature & RH monitor) - blue
Alarm Clock - Digital, power supply: battery, features: date
BLACK FRIDAY -20 % 16.65 € 20.90 €
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Order Code: QGP003c
4.2 6×
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Elektrobock CN05A
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Amazing Deal 7.99 € Save 1.51 €
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Order Code: ELBOCK140
4.4 12×
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SwitchBot Water Leak Detector with Sensor Cable
Sensor - with an extended sensor length of 1 meter, 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
BLACK FRIDAY -24 % 18.81 € 24.90 €
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Order Code: SwBot2404
4.6 13×
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Elektrobock CN-V04
Motion Sesnor , closed system with detection motion, range: lighting and electrical installation, power supply: Power plug,
  10.49 €
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Order Code: ELBOCK071
5.0 1×
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X-Sense FS121 (12+1) Set of 12 XS01-M Wireless Smoke Detectors with SB550 Central Unit
Smoke Detector - temperature measurement from 4 to 38 °C, humidity measurement, battery-powered , detection reach 500 m, reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: test button and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, input voltage 3V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -14 % 251.36 € 293.90 €
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Order Code: XSEN26009
4.8 9×
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Netatmo Smart Door and Window Sensors
Door and Window Sensor - wireless, compatible with Apple Home and Manufacturer app, connect via Radio frequency, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  105.90 €
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Order Code: NET050b
4.8 10×
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Philips Hue Contact sensor Black + zľava 15 % s bridgom Philips Hue
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
  43.90 €
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Order Code: PHLS23014
4.4 15×
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Flammable gas leak detector - solid state sensor, 85dB siren, battery backup
Gas Leak Detector - detects natural gas, propane-butane, LPG, deviation 1500 ppm, gas detection sensitivity 2500 ppm, combined mains + battery-powered , acoustic signals, signal volume 85 dB, features test button and alarm, cover material plastic, operating temperature to 50 °C, ingress protection IP20, input voltage 230 V, mounting kit included, standalone unit
  15.90 €
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Order Code: Solight22_24
4.8 57×
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Elektrobock CN09 White
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
  8.59 €
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Order Code: ELBOCK033
5.0 2×
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Shelly DS18B20
Temperature Sensor - mains power supply, 3 m range, stand-alone unit
  9.08 €
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Order Code: Shell25030
4.0 1×
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AQARA Vibration Sensor T1 (VB-S01D)
Vibration Detector - detects Opening windows and doors, Fall and vibration gas, battery-powered, reaction time: 1s, compatible with Apple Home and Manufacturer app, battery indication and adjustable sensitivity, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
BLACK FRIDAY -14 % 17.77 € 20.90 €
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Order Code: Aqara25021
4.6 7×
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Elektrobock IR22A Classic
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
  11.90 €
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Order Code: ELBOCK031
3.2 8×
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EZVIZ Water leak sensor T10C
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 200 m, compatible with Google Home and EZVIZ, connect via WiFi 2,4 GHz, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  19.90 €
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Order Code: EZVIZ23_04
5.0 2×
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Eve Water Guard - Water Leak Detector - compatible with Thread
Water Leak Detector - detects Water gas, mains power, sound level: 100dB, compatible with Apple Home, Apple Siri shortcuts and Samsung SmartThings, connect via Bluetooth, standalone functional unit, app with English language support for iOS
  119.90 €
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Order Code: Eve22_001
4.5 10×
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SwitchBot Motion Sensor
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion, range: security, power supply: Battery-Powered,
BLACK FRIDAY -18 % 13.79 € 16.90 €
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Order Code: SwBot21_12
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 €
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Order Code: SwBot2403
4.5 2×
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Meross Smart Smoke Alarm
Smoke Detector - battery-powered , acoustic signals, notifications via push notifications, signal volume 85 dB, features: alarm, cover material plastic, operating temperature from 0 to 55 °C, operating humidity from 0 to 95 %, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
  33.90 €
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Order Code: Mer2518
In the category Smart Home Sensors & Detectors on Alza.sk, we currently have a total of 552 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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