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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393 Results
4.8 31×
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iGET SECURITY M3P1 - wireless PIR motion detector for iGET SECURITY M3 and M4
Motion Sesnor , connect through Radio frequency, open system with detection motion, range: security, power supply: Battery-Powered,
  from  18.10 €
Currently Unavailable
Order Code: NU106b
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SONOFF AirGuard TH Lite Zigbee Temperature and Humidity Sensor SNZB-02B
Sensor - temperature accuracy ±0.2°C, humidity accuracy ±2% RH, data updated every 5s, dew point, VPD, history for up to 6 months, data export, alerts for exceeding values, smart automation, Apple Home via Matter Bridge, Zigbee 3.0, IEEE 802.15.4, 2× AAA, battery life up to 2 years, operating temperature −20 to 60°C, dimensions 66.3×27.8×20mm, weight 43g, white
  14.90 €
Currently Unavailable
Order Code: SNF2633
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Ajax MotionCam HDR (PhOD) Jeweller, black
Motion Sesnor , closed system with detection motion compatible with Ajax, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
  239.41 €
Currently Unavailable
Order Code: AJAX26003
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MOES Vibration Sensor, Zigbee
Vibration Detector - detects vibration gas, battery-powered, range: 30 m, compatible with Tuya and Smartlife, connect via WiFi 5 GHz, battery indication and adjustable sensitivity, central unit required to function, app with English language support for Android and iOS
BLACK FRIDAY -35 % 12.22 € 18.90 €
Currently Unavailable
Order Code: Moes2504
4.4 5×
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Honeywell Home R200S-N2 Interconnected fire detector alarm - smoke (optical) principle, battery oper
Smoke Detector - temperature measurement from 0 to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating temperature to 40 °C, operating humidity up to 93 %, input voltage 3V, battery included, standalone unit
  46.90 €
Currently Unavailable
Order Code: HNW22_05
5.0 9×
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EVOLVEO mini siren for Alarmex/Sonix
Siren - closed system, area of use: security
  from  11.31 €
Currently Unavailable
Order Code: RY202r
5.0 1×
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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 €
Currently Unavailable
Order Code: EVO22_08
5.0 2×
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iQtech Millennium, WiFi 2x NoN switch Smartlife, black
Light Switch - for lighting, operates: Standalone, compatible with Tuya and Smartlife, power supply: Power plug, connection: WiFi 2,4 GHz, works with Android and iOS, application in Czech
  32.90 €
Currently Unavailable
Order Code: iQtech22_22
4.9 7×
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iGET SECURITY EP22 - RFID key for iGET M5-4G alarm
RFID Keyring - RFID key for iGET SECURITY M5 alarm. Attached to the iGET SECURITY EP13 wireless keypad for remote alarm control.
  12.90 €
Currently Unavailable
Order Code: iGt21024
3.5 2×
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iGET SECURITY P11v2 - wireless outdoor siren (battery/adapter)
Siren - closed system, area of use: security, OS supported: Android and iOS, power supply: Power plug and Battery-Powered, in Czech and English
  52.90 €
Currently Unavailable
Order Code: iGt21012
4.9 7×
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FIBARO Radiator Thermostat Sensor
Heating Set - for FIBARO Radiator Thermostat Head, Bluetooth
  22.90 €
Currently Unavailable
Order Code: FIBR01b1
4.5 4×
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iGET SECURITY P10 - wireless vibration detector for iGET SECURITY M3B and M2B
Vibration Detector - detects vibration gas, battery-powered, range: 80 m, connect via GSM, battery indication, central unit required to function
  8.09 €
Currently Unavailable
Order Code: NU105t
3.8 7×
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iGET SECURITY P9 - wireless water level detector for iGET SECURITY M3B and M2B
Water Leak Detector - detects Water gas, battery-powered, range: 80 m, connect via GSM, battery indication, central unit required to function
  8.92 €
Currently Unavailable
Order Code: NU105r
4.8 5×
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iGET SECURITY P2 - wired PIR motion detector for iGET SECURITY M3B and M2B
Motion Sesnor , connect through Radio frequency, open system with detection motion, range: security, power supply: Power plug,
  16.90 €
Currently Unavailable
Order Code: NU105d
4.7 23×
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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  19.24 €
Currently Unavailable
Order Code: RY203g
4.2 9×
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EVOLVEO wireless vibration detector for Alarmex/Sonix
Vibration Detector - detects Opening windows and doors and vibration gas,, range: 40 m, standalone functional unit
  15.90 €
Currently Unavailable
Order Code: RY202f3
4.4 3×
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EVOLVEO wireless water level detector for Alarmex/Sonix
Water Leak Detector - detects Water gas, battery-powered, central unit required to function
  18.90 €
Currently Unavailable
Order Code: RY202f
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Meross Combo Smoke and Carbon Monoxide Alarm
Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 50 to 300 ppm, deviation 50 ppm, detection reach 3 m, acoustic signals, signal volume 85 dB, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 15 to 95 %, holder and mounting kit included, standalone unit
  30.90 €
Currently Unavailable
Order Code: Mer2602
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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Homematic IP Window and door sensor, magnetic - HmIP-SWDM-2
Door and Window Sensor - wireless, compatible with Homematic IP, connect via Radio frequency, range of 200m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  32.90 €
Currently Unavailable
Order Code: Home26001
2.8 4×
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MOES IR Human Sensor, Zigbee
Motion Sesnor , open system with detection motion compatible with Tuya, range: security and home control, application in English, Czech, German, Slovak and Hungarian, power supply: Battery-Powered,
  21.90 €
Currently Unavailable
Order Code: Moes22_42
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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
  50.38 €
Currently Unavailable
Order Code: WiZ25002
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EVOLVEO SecuPro remote control for keys
Remote Control - Range 100 m, CR2025 battery, wireless remote control, intuitive alarm control, SOS button for emergency situations, compatible with the EVOLVEO SecuPro main unit, compact and durable design, long battery life
  12.90 €
Currently Unavailable
Order Code: EVO24009
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
In the category Smart Home Sensors & Detectors on Alza.at, we currently have a total of 393 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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