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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467 Results
5.0 2×
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Shelly Gen4 Flood, flood sensor, Bluetooth
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 2 m, sound level: 50dB, compatible with Apple Home, Google Home, Manufacturer app and Home Assistant, connect via WiFi 2,4 GHz and Bluetooth, battery indication, standalone functional unit,, app with Czech language support, app with Czech and English language support for Android, Windows and iOS
BLACK FRIDAY -10 % 13,400 Ft 14,890 Ft
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Order Code: Shell25034
4.4 49×
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AQARA Door and Window Sensor P2
Door and Window Sensor - wireless, compatible with Apple Home, Google Home, Samsung SmartThings and Aqara Home, connect via Bluetooth, battery indication, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
  11,990 Ft
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Order Code: AqRAA_0018
3.7 20×
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MOES Temperature and humidity probe, WiFi
Sensor - WiFi 2.4 GHz without gateway, alerts for temperature and humidity changes, compatibility with Tuya / Smart Life, push notifications, Alexa and Google Assistant support, LCD display, clever scenes, up to 1 year on 2× AAA batteries, easy assembly, compact design
  5,090 Ft
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Order Code: Moes2517
4.9 25×
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SwitchBot Thermometer & Hygrometer Plus
Sensor - temperature measurement in °C or F, measurement of humidity in %, 3" LCD display, data recovery every 4 seconds, mobile apps, notifications, support for voice assistants, the possibility of inclusion in the SwitchBot ecosystem, battery operation (2× AAA)
  6,590 Ft
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Order Code: SwBot21_19
3.7 26×
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iQtech SmartLife CS01W Combo CO + Smoke Detector, Wi-Fi
Smoke Detector - detects CO (carbon monoxide), measurement range from 50 to 300 ppm, battery-powered , acoustic signals, signal volume 85 dB, cover material plastic, compatible with Tuya, standalone unit, app language options: Czech and English , compatible with Android and iOS
BLACK FRIDAY -15 % 12,760 Ft 15,010 Ft
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Order Code: iQ21TECH134
4.2 7×
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Govee Thermometer and hygrometer, Wi-Fi
Sensor - smart temperature and humidity sensor, BT + Wi-Fi connectivity, export data for up to two years, 2x AA batteries, Connectivity with Govee Home, update values every 2 seconds, custom notifications when set values are exceeded
  11,790 Ft
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Order Code: Govee26002
4.6 57×
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AQARA Water Leak Sensor T1
Water Leak Detector - detects Water gas, battery-powered, compatible with Apple Home, Google Home, Samsung SmartThings, IFTTT and Aqara Home, connect via Bluetooth, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  7,090 Ft
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Order Code: Aqara23_005
4.6 26×
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Shelly Gen3 H&T, battery operated temperature and humidity sensor with display, WiFi, black
Detector - dimensions without stand 70 x 70 x 26 mm, with stand 70 x 70 x 45 mm, ambient temperature 0 °C to 40 °C, humidity between 30% and 70% relative humidity, 4 AA (LR6) 1.5 V batteries (batteries not included), USB Type-C power supply (cable not included)
BLACK FRIDAY -10 % 15,290 Ft 16,990 Ft
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Order Code: Shell24_008
4.4 30×
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SwitchBot Thermometer & Hygrometer
Sensor - temperature and humidity, senses 24 hours a day, Bluetooth, range: 120 m, colour: white
BLACK FRIDAY -25 % 5,090 Ft 6,790 Ft
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Order Code: SwBot21_03
4.5 2×
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QINGPING CO2 & Temperature & RH Monitor
Air Quality Meter - detects gas, temperature, humidity, measurement range from 400 to 9999 ppm, temperature measurement from -20 to 50 °C with accuracy 0.5 °C, humidity measurement with accuracy 5 %, display, features: hours, cover material plastic, input voltage 5 V, standalone unit, app language options: Czech and English, compatible with Android and iOS
  33,990 Ft
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Order Code: QGP008a
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
  5,990 Ft
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Order Code: Solight22_24
5.0 1×
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X-Sense XS01-WX Wi-Fi Smoke Detector
Smoke Detector - battery-powered , 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, mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS
  18,590 Ft
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Order Code: XSEN26003
5.0 2×
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Shelly DS18B20
Temperature Sensor - mains power supply, 3 m range, stand-alone unit
  3,690 Ft
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Order Code: Shell25030
3.0 1×
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Ubiquiti UniFi SuperLink Environmental
Sensor - Temperature, humidity, light and water, SuperLink, CR123A battery, IPX5
  18,990 Ft
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Order Code: Ubiq26354
4.7 48×
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AQARA Motion Sensor P1 (MS-S02)
Motion Sesnor , connect through Radio frequency, open system with detection motion and Lights compatible with Apple Home, IFTTT and Aqara Home, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
BLACK FRIDAY -5 % 8,490 Ft 8,990 Ft
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Order Code: Aqa22_05
4.8 57×
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Elektrobock CN09 White
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
  3,290 Ft
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Order Code: ELBOCK033
4.5 27×
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Nuki door sensor white
Door and Window Sensor - wireless, compatible with Apple Home, connect via Bluetooth, central unit required, supported OS: iOS, application in English
  26,600 Ft
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Order Code: Nuki22_03
4.4 68×
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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
  9,430 Ft
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Order Code: RY211
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 -30 % 7,190 Ft 10,290 Ft
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Order Code: SwBot2404
4.9 17×
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SONOFF IP65 Zigbee LCD Smart Temperature Humidity Sensor SNZB-02WD
Sensor – IP65 waterproof design, temperature and humidity measurements, clear 2.2″ LCD display, high accuracy of ±0.2 °C and ±2 % RH, view history up to 180 days, smart scenes and notifications, support for voice assistants, Zigbee 3.0 compatible
  13,590 Ft
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Order Code: SNFa116
5.0 1×
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SONOFF AirGuard TH E-Ink Lite Zigbee temperature and humidity sensor SNZB-02UL
Sensor - smart temperature and humidity sensor, Zigbee 3.0, 2.9" E-ink display, measurement accuracy of ±0.2°C and ±2% RH, values updated every 5 seconds, 6-hour measurement history directly on the display, up to 6 months of history in the eWeLink app, remote temperature and humidity monitoring, display values from another compatible sensor, smart automations, Apple Home via Matter Bridge, Home Assistant support, powered by 2× AAA batteries, magnetic attachment and wall mounting
New arrival 10,990 Ft
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Order Code: SNF2657
5.0 1×
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TP-Link Tapo T150 Smart Human Presence 5-in-1 sensor
Motion Sesnor , connect through Radio frequency, open system with detection motion, Lights, temperature, Humidity and Human presence compatible with Tapo App, range: lighting, security and home control, application in English, Czech, German and Slovak, power supply: Battery-Powered,
New arrival 18,790 Ft
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In stock 4 pcs
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Order Code: TP26130
4.3 7×
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Shelly Blu window and door sensor, Bluetooth, black
Door and Window Sensor -, compatible with Samsung SmartThings, connect via Bluetooth, battery indication and deviation angle adjustment, separately functional unit, supported OS: Android, Windows and iOS, application in Czech, application in Czech and English
  8,790 Ft
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In stock 3 pcs
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Order Code: Shell23_024
4.5 2×
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RETLUX RSH 310 Smart Water Leak Sensor
Water Leak Detector - detects Water gas, battery-powered, compatible with Tuya, Smartlife and Manufacturer app, connection via radio waves, battery indication, central unit required to function,, app with Czech language support for Android and iOS
BLACK FRIDAY -25 % 3,790 Ft 5,090 Ft
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Order Code: RTLX26016
In the category Smart Home Sensors & Detectors on Alza.hu, we currently have a total of 467 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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