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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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Alza Days Smart Smoke Detectors Smoke Smart Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Smart Air Quality Meters Smart Air Quality Meters Vibration Detectors Vibration Temperature & Humidity Sensors Temperature & Humidity Door and Window Sensors Door and Window Sensors Accessories for Detectors and Sensors Accessories Jak zabezpečit chytrou domácnost?
 
595 Results
iNELS RFMD-100 Motion detector - Motion Sesnor
iNELS RFMD-100 Motion detector
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Manufacturer app, range: lighting, electrical installation and home control, application in English, Czech and Slovak, power supply: Battery-Powered,
1,840,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet005
iNELS RFMD-200 Wireless motion detector - Motion Sesnor
iNELS RFMD-200 Wireless motion detector
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Manufacturer app, range: lighting, electrical installation and home control, application in English, Czech and Slovak, power supply: Battery-Powered,
1,840,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet006
iNELS RFSOU-1 Twilight detector - Sensor
iNELS RFSOU-1 Twilight detector
Sensor - battery-powered, twilight, for lighting control, outdoor mounting, IP65
1,696,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet007
iNELS RFSF-100 Flood detector - Water Leak Detector
iNELS RFSF-100 Flood detector
Water Leak Detector - detects water gas, battery-powered, range: 160 m, reaction time: 2s, compatible with Manufacturer app, connection via radio waves, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
1,784,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet004
Homematic IP with brightness sensor, outdoor, white - Motion Sesnor
2 colors
Homematic IP with brightness sensor, outdoor, white
Motion Sesnor , connect through Radio frequency, closed system with detection motion and Light compatible with Manufacturer app, range: lighting and security, application in English, Czech and German, power supply: Power plug,
3,490,-
Buy
In stock > 5 pcs at the supplier's
Order Code: Home24001
MDT Technologies KNX occupancy sensor 360° L2 IP44, matt white - Sensor
MDT Technologies KNX occupancy sensor 360° L2 IP44, matt white
Sensor - occupancy detector with IP44 protection and 2 sensors, version for installation in hollow ceilings, pure white gloss, 2 sensors, ceiling installation
4,596,-
Buy
In stock 1 pcs at the supplier's
Order Code: MDTT24311
MDT Technologies KNX occupancy sensor 360° L3, temperature measurement, matt white - Sensor
MDT Technologies KNX occupancy sensor 360° L3, temperature measurement, matt white
Sensor - Occupancy detector with 3 sensors, temperature sensor and integrated white LED orientation light, version for installation in hollow ceilings, temperature sensor, 3 sensors, ceiling installation
4,813,-
Buy
In stock 2 pcs at the supplier's
Order Code: MDTT24312
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2") - Water Leak Detector
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2")
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 1100 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, standalone functional unit,, app with Czech language support for Android, Windows and iOS
6,194,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX23_023
SAFE Wireless flammable and explosive gas detector 5YGAS-RF - Gas Leak Detector
SAFE Wireless flammable and explosive gas detector 5YGAS-RF
Gas Leak Detector - detects natural gas, mains power supply, detection reach 1000 m, acoustic, visual signals, signal volume 85 dB, features alarm, cover material plastic, operating temperature from -10 to 55 °C, operating humidity from 5 to 95 %, power adapter and mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android and iOS
New arrival 1,390,-
Buy
In stock > 5 pcs at the supplier's
Order Code: SAHhob014
SAFE Wireless temperature detector 10YHT-RF - Temperature Sensor
SAFE Wireless temperature detector 10YHT-RF
Temperature Sensor
New arrival 790,-
Buy
In stock > 5 pcs at the supplier's
Order Code: SAHhob013
SAFE FireSafe 10YDCO-RF Wirelessly connectable carbon monoxide (CO) detector - Gas Leak Detector
SAFE FireSafe 10YDCO-RF Wirelessly connectable carbon monoxide (CO) detector
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, signal volume 85 dB, features alarm, cover material plastic, operating temperature from -10 to 55 °C, operating humidity from 5 to 95 %, battery and mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android and iOS
New arrival 1,390,-
Buy
In stock > 5 pcs at the supplier's
Order Code: SAHhob012
SAFE FireSafe 10Y30-RF wirelessly connectable fire detector - Smoke Detector
SAFE FireSafe 10Y30-RF wirelessly connectable fire detector
Smoke Detector - detects dust particles, battery-powered , detection reach 1000 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: alarm, cover material plastic, operating temperature from -10 to 55 °C, operating humidity from 5 to 95 %, battery and mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android and iOS
New arrival 790,-
Buy
In stock > 5 pcs at the supplier's
Order Code: SAHhob011
Siemens Connected Home water leak detector SCH040ZB, ZigBee - Water Leak Detector
Siemens Connected Home water leak detector SCH040ZB, ZigBee
Water Leak Detector - detects water gas, battery-powered, reaction time: 2s, sound level: 60dB, compatible with Connected Home, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
1,890,-
Buy
In stock 3 pcs at the supplier's
Order Code: SimS25001
Siemens Connected Home window/door switch SCH020ZB, ZigBee - Door and Window Sensor
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
1,239,-
Buy
In stock 3 pcs at the supplier's
Order Code: SimS25003
Siemens Connected Home motion detector SCH010ZB, ZigBee - Motion Sesnor
Siemens Connected Home motion detector SCH010ZB, ZigBee
Motion Sesnor , connect through Radio frequency, closed system with detection animal and Human presence, range: security and home control, power supply: Battery-Powered,
2,290,-
Buy
In stock 3 pcs at the supplier's
Order Code: SimS25002
MDT Technologies Surface mount frame for SCN-P360x4.01 series detectors, matte white - Small Frame
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)
340,-
Buy
In stock 5 pcs at the supplier's
Order Code: MDTT24314
MDT Technologies KNX occupancy sensor 360°, 4 Pyro, brightness measurement, matt white - Sensor
MDT Technologies KNX occupancy sensor 360°, 4 Pyro, brightness measurement, matt white
Sensor - The MDT presence detector is available in several versions, up to 4 pyrosensors and a high-resolution lens, white, ceiling, Channel Hkl, Range 16 m, max. range (Ø) presence 8m
5,215,-
Buy
In stock 1 pcs at the supplier's
Order Code: MDTT24307
PIR motion detector - for 55 mm frame, indoor, anthracite - HmIP-SMI55-A - Motion Sesnor
PIR motion detector - for 55 mm frame, indoor, anthracite - HmIP-SMI55-A
Motion Sesnor , connect through Radio frequency, closed system with detection motion, range: lighting, security and home control, application in English, Czech and German, power supply: Battery-Powered,
1,830,-
Buy
In stock > 5 pcs at the supplier's
Order Code: Home23_40
Wall mounted remote control - 6 buttons, anthracite - HmIP-WRC6-A - Remote Control
Wall mounted remote control - 6 buttons, anthracite - HmIP-WRC6-A
Remote Control The programmable wireless wall-mounted remote control in anthracite (HmIP-WRC6-A) is part of the Homematic IP smart home system. It has six buttons for manual control of devices or remote control of smart home system functions. The device can control lighting, blinds, shutters, garage doors, etc. Can be integrated into the 55 mm Battery Component Stand (HmIP-DS55). Colour anthracite.
2,090,-
Buy
In stock 5 pcs at the supplier's
Order Code: Home23_39
SONOFF IP65 Zigbee LCD Smart Thermometer (Probe Version) SNZB-02LD - Digital Thermometer
2 colors
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
779,-
Buy
On the way > 5 pcs
Expected 25/06/2026
Order Code: SNFa117
FIBARO Smoke Sensor - Smoke Detector
3 variants
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
1,889,-
Buy
On the way 4 pcs
Expected 12/06/2026
Order Code: FIBR01f
Somfy Wireless Sunis WireFree II io Solar Sensor - Sensor
4.4 5×
Somfy Wireless Sunis WireFree II io Solar Sensor
Sensor Wireless (battery operated) solar sensor, based on the measurement of solar radiation intensity, it controls one or more io drives of the household shading directly or via the TaHoma unit, can be placed on the outside of the house or apartment, saves energy, easy and quick installation, battery low indication
3,299,-
From 152,- per month
Buy
On the way 2 pcs
Expected 05/06/2026
Order Code: SOM2118
SwitchBot Meter Pro (CO2) - Sensor
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
1,899,-
Buy
On the way > 5 pcs
Expected 31/07/2026
Order Code: SwBot2411
Somfy Thermis Wirefree II io Battery Temperature Sensor - Temperature Sensor
5.0 3×
Somfy Thermis Wirefree II io Battery Temperature Sensor
Temperature Sensor - Wireless (battery) temperature sensor for TaHoma system suitable for interior and exterior, can control your shading or automated heating depending on outdoor/indoor temperature, TaHoma system can be set scenarios or agenda when changing temperature to control multiple devices, saves energy, easy and quick installation.
3,479,-
From 160,- per month
Buy
On the way 1 pcs
Expected 08/06/2026
Order Code: SOM2119
Alza Days Smart Smoke Detectors Smoke Smart Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Smart Air Quality Meters Smart Air Quality Meters Vibration Detectors Vibration Temperature & Humidity Sensors Temperature & Humidity Door and Window Sensors Door and Window Sensors Accessories for Detectors and Sensors Accessories Jak zabezpečit chytrou domácnost?
 

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In the category Smart Home Sensors & Detectors on Alza.cz, we currently have a total of 595 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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