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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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520 Results
Robustel Multifunction Smart Sensor S6000U with power supply
Sensor - measured data: Temperature, humidity, noise level, the intensity of the lighting, atmospheric pressure, distance, acceleration, Tilt, Modbus protocol, operating temperature -20 °C to +70 °C, degree of protection IP31, input voltage 9 - 24 V DC, relative humidity 5 ~ 95% RH, RoHS2.0, WEEE, dimensions 21,5 × 37 × 76 mm, weight 30,5 g, 1 × S6000U sensor included, 1 × 3M tape, 1 × 4pin terminal block, power supply 12 W
172.93 €
Buy
In stock 1 pcs at the supplier's
Order Code: ROBsen0002
BOT Smart Vibration Sensor VB1 Zigbee
Vibration Detector - detects vibration gas, battery-powered, range: 30 m, compatible with Tuya and Smartlife, connect via WiFi 2,4 GHz and WiFi 5 GHz, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Discounted -11 % 25.19 € 28.45 €
Buy
In stock at the supplier's
Order Code: BOTdet009
MDT Technologies Surface mount frame for SCN-P360x4.01 series detectors, matte white
Small Frame - mounting frame for surface mounting of the presence detector, dimensions (mm x 85 mm x 14 mm)
14.92 €
Buy
In stock 5 pcs at the supplier's
Order Code: MDTT24314
BOT Smart Smoke Detector WiFi Tuya SS1 built-in battery
Smoke Detector - battery-powered , detection reach 20 m, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, cover material plastic, compatible with Tuya and Smartlife, standalone unit, app language options: Czech and English , compatible with Android and iOS
50.31 €
Buy
In stock 5 pcs at the supplier's
Order Code: BOTdet004
WiZ Contact sensor 2pack
Door and Window Sensor - wireless, compatible with Google Home and Manufacturer app, connect via WiFi 2,4 GHz, battery indication, night orientation light and adjustable sensitivity, range of 20m, separately functional unit, supported OS: Android and iOS, application in Czech, application in Czech and English - 25.99 €/pcs
51.97 €
Buy
In stock 1 pcs at the supplier's
Order Code: WiZ25002
4.9 11×
SONOFF IP65 Zigbee LCD Smart Thermometer (Probe Version) SNZB-02LD
Digital Thermometer – IP65 waterproof design with 1.5m probe, temperature measurement even in liquids and confined spaces, 2.2″ LCD display, accuracy ±0.2 °C, measurement history up to 180 days, smart scenes and notifications, compatible with voice assistants, Zigbee 3.0 compatible
32.90 €
Buy
On the way > 5 pcs
Expected 30/09/2026
Order Code: SNFa117
4.1 12×
SwitchBot Meter Pro (CO2)
Sensor - Bluetooth wireless connectivity, real-time data in the SwitchBot app, Android and iOS support, Google Assistant and Amazon Alexa - Matter standard only works with the hub
79.90 €
Buy
On the way > 5 pcs
Expected 31/07/2026
Order Code: SwBot2411
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,
28.90 €
Buy
On the way > 5 pcs
Expected 13/07/2026
Order Code: Shell23_034
4.9 13×
SwitchBot Meter Pro
Sensor - temperature detection, humidity, temperature measurement from 0 to 50 °C with an accuracy of 0.5 °C, moisture measurement with 3% accuracy, battery power, notifications via push notifications, battery status indication, cover material plastic, operating temperature from 0 to 50 °C,, central unit required for functionality, applications in Czech and English, compatible with Android and iOS
37.90 €
Buy
On the way > 5 pcs
Expected 31/07/2026
Order Code: SwBot2410
4.7 13×
FIBARO Smoke Sensor
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features: alarm, operating temperature from 0 to 55 °C, operating humidity from 0 to 93 %, battery included, standalone unit requires a central hub, app language options: Czech and English
61.90 €
Buy
On the way 3 pcs
Expected 29/07/2026
Order Code: FIBR01f
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
Discounted -24 % 20.93 € 27.90 €
Currently Unavailable
Order Code: RY211
4.9
Eufy Motion Sensor - White
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion, range: security, application in English, power supply: Battery-Powered,
41.90 €
On the way > 5 pcs
Expected 14/07/2026
Order Code: AnkEuf21_01
4.6 33×
TESLA Smart Sensor Siren
Siren - open system, area of use: security, OS supported: Android and iOS, compatible with Tuya, Smartlife and Tesla Smart, power supply: Power plug and Battery-Powered, in Czech and English
25.90 €
Buy
Ordered on request
Order Code: Tsl_22_32
4.6
IMMAX NEO Smart Occupancy Sensor, Zigbee 3.0
Motion Sesnor , connect through WiFi 2,4 GHz and WiFi 5 GHz, open system with detection motion and Light compatible with Apple Siri shortcuts, Tuya and Immax NEO PRO, range: lighting, electrical installation and security, application in English, Czech, German and Hungarian, power supply: Power plug and USB,
Amazing Deal 31.52 € Save 10.38 €
Buy
Ordered on request
Order Code: IMXX2333
5.0
Ajax CombiProtect White
Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Ajax and Manufacturer app, range: security, application in English and Czech, power supply: Battery-Powered,
119.25 €
Buy
Ordered on request
Order Code: AJAX7170
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
43.90 €
Buy
Ordered on request
Order Code: PHLS23015
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
36.90 €
Buy
Ordered on request
Order Code: Woox24006
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
28.90 €
Buy
Ordered on request
Order Code: EVO22_08
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
28.90 €
Buy
Ordered on request
Order Code: Imou23_40
4.6 20×
Shelly Gen3 H&T, battery operated temperature and humidity sensor with display, WiFi, ivory
Detector - battery operated temperature and humidity sensor with display, WiFi, ivory
45.90 €
Buy
Ordered on request
Order Code: Shell24_011
3.0
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,
22.19 €
Buy
Ordered on request
Order Code: EMOS24145
5.0
EMOS GoSmart PIR sensor (motion sensor), ZigBee
Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth, open system with detection motion compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, range: security, application in English, Czech, German, Slovak and Hungarian, power supply: Battery-Powered,
33.52 €
Buy
Ordered on request
Order Code: EMOS24055
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
28.07 €
Buy
Ordered on request
Order Code: EMOS24054
4.8 106×
Honeywell R200C-2, Carbon monoxide detector and detector, CO Alarm
Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 3 to 330 ppm, gas detection sensitivity 28 ppm, battery-powered, acoustic signals, signal volume 85 dB, features test button, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 25 to 95 %, ingress protection IP44, input voltage 3V, battery included, standalone unit
Discounted -30 % 32.10 € 45.90 €
Currently Unavailable
Order Code: HNW22_01
In the category Smart Home Sensors & Detectors on Alza.sk, we currently have a total of 520 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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