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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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344 Results
4.6 20×
IMMAX NEO LITE Smart IR controller with temperature and humidity sensors with LCD, WiFi
Controller - will replace all IR remotes, the display shows the time, Date, temperature and humidity, connected to the Immax NEO PRO app on your phone, WiFi connection, IR range up to 12 m, automation settings, control via Amazon Alexa or Google Home voice assistant
28.90 €
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In stock > 5 pcs
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Order Code: IMMX_22_26
4.8 12×
Honeywell Home R200S-2 Fire detector alarm - smoke sensor (optical principle), battery operated
Smoke Detector - temperature measurement to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button and alarm, cover material plastic, operating temperature to 40 °C, operating humidity from 25 to 93 %, input voltage 3V, battery included, standalone unit
28.90 €
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In stock > 5 pcs
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Order Code: HNW22_04
4.2 20×
Netatmo Smart Carbon Monoxide Alarm
Gas Leak Detector - battery-powered, notifications via push notifications, signal volume 85 dB, battery indication, cover material plastic, compatible with Apple Home, standalone unit, app language options: Czech and English , compatible with Android, Windows and iOS
88.90 €
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In stock > 5 pcs
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Order Code: NetA_21_01
4.6 14×
iGET SECURITY P14 - wireless smoke detector for iGET SECURITY M3B and M2B
Smoke Detector - battery-powered , reaction time 1 s, acoustic, visual signals, notifications via SMS, signal volume 85 dB, features: test button, cover material plastic, operating temperature from 5 to 50 °C, operating humidity from 20 to 90 %, compatible with iGet Home, standalone unit
19.90 €
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In stock > 10 pcs
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Order Code: NU105z
4.3 22×
IMMAX NEO LITE Smart pool temperature sensor + 2x indoor temperature and humidity sensor
Temperature Sensor - TUYA, 2.4GHz WiFi connection, indoor and outdoor unit, monitoring the current pool water temperature, indoor temperature and humidity, date and time controlled from the internet with manual settings, alarm clock with snooze option, viewing the measured values in Immax NEO PRO, iOS compatible, Android, supports Apple Siri shortcuts, TUYA and LIDL systems
56.90 €
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In stock 5 pcs
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Order Code: IMMX25001
4.0 24×
Nuclear radiation detector JT-RAD01
Detector The JT-RAD01 is a radiation meter for the detection of γ-, β- and X-rays and is characterized by particularly easy handling, high measurement stability and a practical and robust design. The meter has a large colour LCD display with backlight. The measurement results can be displayed both as an overview statistic and as an evaluation graph. J17
67.90 €
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In stock 5 pcs
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Order Code: m23_01
4.1 17×
AQARA Motion and Light Sensor P2
Motion Sesnor , connect through Bluetooth, open system with detection motion and Light compatible with Apple Home and Aqara Home, range: lighting and security, application in English, Czech, German, Slovak and In Polish, power supply: Battery-Powered,
29.90 €
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In stock 3 pcs
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Order Code: Aqara24002
4.7 39×
SwitchBot Thermo/Hygrometer bundle with HUB
Sensor - measures temperature and humidity, mobile apps, degree of protection IP65, strap for hanging, updates the measured values every 4 seconds, package also includes HUB for remote synchronization
55.90 €
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In stock > 5 pcs
Order Code: SwBot21_27
4.7 47×
IMMAX NEO LITE Smart IR remote control with temperature and humidity sensors, WiFi
Smart Wireless Remote - Smart IR, TUYA, WiFi, remote control of all devices, which are normally controlled by remote control with IR port, remote control, automation, measures temperature and humidity, Immax NEO PRO app in Czech and 60 other languages compatible with iOS, Android, with Amazon Alexa voice assistants, Apple Siri Shortcuts, Google Assistant and TUYA systems, LIDL
31.90 €
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In stock > 10 pcs
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Order Code: IMMX_21_02
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
37.90 €
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In stock > 5 pcs
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Order Code: RY211
4.9 48×
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
9.19 €
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In stock > 10 pcs
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Order Code: SNFa056
4.1 14×
IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0
Motion Sesnor , open system with detection motion and Light compatible with Apple Siri shortcuts, Tuya, Lidl Home, Smartlife, Nedis SmartLife, ETA SMART, Tesla Smart and Immax NEO PRO, range: lighting, security and home control, application in English, Czech, German, Slovak, Hungarian and In Polish, power supply: USB,
Buy with code ALZADAYS25AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 25 % Rabatt mit dem Code ALZADAYS25AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 17.18 €
Amazing Deal 22.90 €
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In stock > 5 pcs
Order Code: IMMX24071
4.8 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
29.90 €
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In stock 5 pcs
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Order Code: SwBot2410
4.8 18×
Airbi CO2AIR digital carbon dioxide meter
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
81.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
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Order Code: Airbi24001
4.7 16×
FIBARO Motion Sensor
Motion Sensor - for alarm, Interior, battery powered, input voltage: 3V, reach of 7m, connection via WiFi 2,4 GHz and Bluetooth, independently functional unit, application in Czech, applications in Czech and English for Android and iOS
69.90 €
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In stock > 5 pcs
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Order Code: FIBR01b
4.1 36×
Tesla Smart Switch Dual ZigBee
Light Switch - for lighting and home control, operates: Via central unit / bridge, compatible with Tesla Smart, power supply: Power plug, connection: WiFi 2,4 GHz, works with Android and iOS, application in Czech and English
33.90 €
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In stock 2 pcs
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Order Code: Tsl_22_13
3.3
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, standalone functional unit,, app with Czech language support, app with Czech and English language support for Android and iOS
24.90 €
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In stock 2 pcs
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Order Code: EZVIZ23_04
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
20.90 €
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In stock 1 pcs
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Order Code: NOUSmh010
5.0
Shelly-BYPASS
Switching Relay - Shelly Bypass, compatible with Shelly 1L and Shelly Dimmer 2
4.60 €
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In stock 3 pcs
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Order Code: SHELLa2118
3.8 18×
Meross Smart Temperature and Humidity Sensor Kit MS100F+ MSH300
Sensor - temperature measurement in °C or °F, measurement of humidity in %, functionality only with Meross Hub (included), mobile apps, notifications, battery operation (CR2477), integrated solar panel for self-powering
41.90 €
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In stock 4 pcs
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Order Code: Mer24_09
3.9 10×
Tado Wireless temperature sensor X
Detection Sensor The X Wireless Temperature Sensor is an optional add-on for X Smart Thermostatic Heads that allows for more accurate temperature measurement. Package contents: Wireless temperature sensor X, 3x AAA batteries, mounting kit (2x wall mounting screw, 2x wall plug, 3x adhesive pad). Compatible with tado° X series only.
93.90 €
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In stock > 5 pcs
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Order Code: Tado24007
4.6 11×
MOES Water Leakage Detector, Zigbee
Water Leak Detector - detects water gas, battery-powered, compatible with Tuya and MOES, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
16.90 €
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In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Moes22_36
4.1 93×
TESLA Smart Sensor Temperature and Humidity Display
Sensor - on the wall and on the table, measures temperature and humidity, with a display, 2 AAA batteries, white colour, dimensions 61 × 61 × 23 mm (H×W×D)
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 26.91 €
29.90 €
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In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Tsl_22_28
5.0
Tedee Door Sensor, white
Sensor - real-time door status detection, door status display in tedee app, long-open door alert, wireless operation, Bluetooth
54.90 €
Buy
In stock 5 pcs
Order Code: Tedee25005

Smart Home Sensors & Detectors

Smart Home Sensors & Detectors

In the category Smart Home Sensors & Detectors on Alza.at, we currently have a total of 344 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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