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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410 Results
5.0 2×
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QINGPING Temperature & RH Monitor Pro S Wi-Fi
Sensor - professional temperature and humidity monitoring for greenhouses, factories, warehouses, business centers, supermarkets and hospitals, temperature range -20 to 50 °C, humidity range 0-99.9%, support extreme indoor conditions, connectivity option - LoRa (gateway required), NB-IoT (50 MB of free data per year) or Wi-Fi, regular reporting of traffic and over-limits, wireless remote monitoring, instant alerts when the set values are exceeded, 2600 mAh rechargeable battery with USB power supply, multi-stage alert settings
  40.90 €
Currently Unavailable
Order Code: QGP006a
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HEATIT Floor Sensor o3mm 3m NTC 10 k?
Sensor - floor sensor ø3 mm 3m NTC 10 kΩ for use with Heatit thermostats, for overheating protection the sensor is placed close to the floor to avoid overheating the floor temperature
  13.90 €
Currently Unavailable
Order Code: HEA23_12
1.8 6×
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EVOLVEO WiFi SOS, smart emergency SOS button
SOS Button SOS button - Smart Life app, WiFi network, one-button alarm with tow rope, sound and light alarm, recording history and tracking battery status in the app, support for automated scenes, easy installation without interference to the mains, helps in crisis situations, batteries: AA, stand-alone functional unit
  16.90 €
Currently Unavailable
Order Code: EVO23_023
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EVOLVEO Alarmex Pro (ACSALMMSTS) wireless door/gate/gate detector
Door and Window Sensor - wireless, compatible with Manufacturer app, connect via WiFi 2,4 GHz, GSM and Radio frequency, range of 80m, separately functional unit, supported OS: Android and iOS, application in Czech, application in Czech and English
  30.88 €
Currently Unavailable
Order Code: EVO22_10
2.8 5×
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Nedis switch RFWS20WT
Toggle Switch RF, smart, wall-mounted, range 30 m, Double, White colour
  11.90 €
Currently Unavailable
Order Code: NDS_21_02
4.9 7×
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Shelly Blu H&T, battery operated temperature and humidity sensor, Bluetooth + Zigbee, Mocha
Humidity Sensor
  20.90 €
Currently Unavailable
Order Code: Shell26003
4.6 5×
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iGET SECURITY EP10 - wireless vibration sensor for iGET M5-4G alarm
Detector vibration detection sensor for iGET SECURITY M5 alarm. It is used for windows, showcases, valuable things like TV, antiques, etc. As soon as a minor shock occurs, the sensor immediately sounds an alarm. Protection against sabotage, highest transmission security 256bit, very long battery life of 5 years, the alarm constantly monitors the activity of this sensor, also a signal, battery percentage and more.
  18.90 €
Currently Unavailable
Order Code: iGt21018
5.0 1×
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Shelly Blu H&T Display, Zigbee, Bluetooth, White
Humidity Sensor
New arrival 31.90 €
Currently Unavailable
Order Code: Shell26036
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Nice Smoke-Control FGSD-002
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C with accuracy 0,5 °C, battery-powered , detection reach 40 m, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, adjustable sensitivity and protection against sabotage, features: test button, self-diagnostics and alarm, cover material plastic, operating temperature from 0 to 55 °C, operating humidity from 0 to 93 %, holder and battery included, compatible with Yubii Home Center, standalone unit requires a central hub
  96.90 €
Currently Unavailable
Order Code: Nice26016
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EMOS Microwave sensor (motion sensor) IP20, 2000 W, 360°, mounted
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
  17.28 €
Currently Unavailable
Order Code: EMOS26066
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EMOS GoSmart PIR sensor (motion sensor) IP20, 60°, ZigBee
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Lidl Home, Smartlife and EMOS GoSmart, range: lighting and security, application in English, Czech, German, Slovak, Hungarian, In Polish, In Spanish, In French and In Italian, power supply: Battery-Powered,
  19.29 €
Currently Unavailable
Order Code: EMOS26065
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Nice CO-Control
Gas Leak Detector - CO (carbon monoxide) detection, measuring range from 0 to 450ppm, battery-powered, 40m range, acoustic and optical signalling, push notifications, 85dB volume, test button feature, self-diagnostics and alarm, plastic casing, operating temperature from 0 to 50°C, bracket and batteries included, communicates with the Yubii Home Center app, standalone unit requires a control unit to function
  135.90 €
Currently Unavailable
Order Code: Nice26020
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Nice Flood-Control FGFS-101
Water Leak Detector - detects temperature, Water and Angle gas, battery-powered, range: 40 m, compatible with Yubii Home Center, connection via radio waves, protection against sabotage, standalone functional unit, central unit required to function
  96.90 €
Currently Unavailable
Order Code: Nice26017
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Nice window/door sensor, white
Door and Window Sensor - wireless, compatible with Manufacturer app, connect via WiFi 2,4 GHz, battery indication and protection against sabotage, central unit required, application in Czech, application in Czech and English
  73.90 €
Currently Unavailable
Order Code: Nice26018
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EMOS PIR sensor (motion sensor) IP20, 1200 W, 360°, mounted
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
  10.43 €
Currently Unavailable
Order Code: EMOS26067
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Siemens Connected Home window/door switch SCH020ZB, ZigBee
Door and Window Sensor -, compatible with Google Home, connect via Radio frequency, battery indication, range of 14m, central unit required, supported OS: Android and iOS
  50.69 €
Currently Unavailable
Order Code: SimS25003
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Ajax FireProtect 2 SB (Heat/CO) (8EU) ASP white (63216) with built-in battery
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
  121.65 €
Currently Unavailable
Order Code: AJAX25030
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Ajax MotionCam Outdoor (PhOD) Jeweller (8EU) ASP white (39293)
Motion Sesnor , connect through Radio frequency, closed system with detection motion and Human presence compatible with Ajax and Manufacturer app, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
  427.91 €
Currently Unavailable
Order Code: AJAX25013
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Ajax FireProtect 2 RB (CO) (8EU) ASP white (63212) with replaceable battery
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, battery and mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
  108.55 €
Currently Unavailable
Order Code: AJAX25026
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Ajax WaterStop [3/4] (8EU) white - Remote controlled water shut-off valve (3/4")
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 1,1 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, central unit required to function,, app with Czech language support for Android, Windows and iOS
  287.06 €
Currently Unavailable
Order Code: AJAX23_028
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Nous E17 WiFi smart smoke sensor
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, features: alarm, cover material plastic, operating temperature from -10 to 55 °C, operating humidity up to 95 %, input voltage 3V, holder, battery and mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS
  22.90 €
Currently Unavailable
Order Code: Nous26025
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Nous E9 Zigbee Smart combustible gas detector for home use
Gas Leak Detector - detects natural gas, propane-butane, mains power supply, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, features alarm, cover material plastic, operating temperature from -10 to 40 °C, input voltage 230 V, requires a central hub, app language options: Czech and English , compatible with Android and iOS
  29.90 €
Currently Unavailable
Order Code: Nous26028
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Nous E8 Zigbee smart smoke sensor
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, features: alarm, cover material plastic, operating temperature from -20 to 55 °C, input voltage 3V, requires a central hub, app language options: Czech and English , compatible with Android and iOS
  29.90 €
Currently Unavailable
Order Code: Nous26027
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Nous E18 WiFi carbon monoxide (CO) detector
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, display, features alarm, cover material plastic, operating temperature from -10 to 40 °C, operating humidity up to 95 %, input voltage 3V, holder, battery and mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS
  29.90 €
Currently Unavailable
Order Code: Nous26026
In the category Smart Home Sensors & Detectors on Alza.de, we currently have a total of 410 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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