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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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432 Results
SAFE Door Guard Plus, white
Sensor - wireless magnetic open, shock and tilt detector for window and door security Powered by a replaceable battery that allows continuous operation for up to 4 years, white colour
19,290 Ft
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26008
SAFE Glass Guard, white
Sensor - wireless glass breakage detector for security of glazed surfaces equipped with two NC inputs, Multi-factor glass breakage detection with the possibility of remote sensitivity configuration significantly eliminates the occurrence of false alarms, The detector is powered by a replaceable battery that allows continuous operation for up to 3 years, colour white
19,790 Ft
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26007
SAFE Indoor Siren, white
Siren - closed system, area of use: security, OS supported: Android and iOS, compatible with Manufacturer app, power supply: Battery-Powered, in Czech and English
19,790 Ft
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26006
SAFE Motion Guard Plus, white
Sensor - wireless dual PIR motion detector with microwave sensor detecting motion up to 12 meters, which is able to reliably ignore the movement of animals in the guarded area (PET immunity) up to a weight of 18 kg and 50 cm height, The detector is powered by a replaceable battery type CR123A, which allows continuous operation of the detector for up to 4 years, colour white
26,490 Ft
Buy
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26002
SAFE Water Guard, white
Sensor - wireless water leak detector, the detector is powered by a replaceable battery that allows continuous operation for up to 3 years, colour white
16,490 Ft
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26005
SAFE Fire Guard, white
Sensor - wireless fire detector with groundbreaking dual-spectrum detection and SIC technology, It can operate in a SAFE system or completely autonomously. Battery powered for up to 36 months, The detector has high sensitivity, stable performance and maximum resistance to false alarms, colour white
16,490 Ft
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26004
SAFE Motion Cam (PhOD), white
Sensor - wireless dual PIR motion detector with photo camera, images in case of an alarm, or on request (PhOD), Motion detection up to 12 metres, which reliably ignores the movement of animals in the guarded area up to a weight of 18 kg and a height of 50 cm, Battery life for up to 4 years, Colour white
54,690 Ft
Buy
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26001
SwitchBot Presence Sensor
Sensor - 3in1 presence detection (mmWave radar, PIR, light sensor), recognition of micro-movements and static persons, range up to 8 m (movement) / 5 m (presence), 120° angle of view, battery life up to 2 years, magnetic base with adjustable angle, local automation without hub (up to 2 scenes), Matter support via SwitchBot Hub, Compatible with Apple Home, Alexa, Google Home, Home Assistant, IPX5
New arrival 10,990 Ft
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SwBot2514
Xtend Home EZS-KLR10
Remote Control - wireless, 4 buttons, 433MHz, for Tuya control panel, 3V battery (CR2032)
3,790 Ft
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Xtend25013
Ajax MotionCam Black
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Ajax, range: security, application in English, Czech, German and Slovak, power supply: Battery-Powered,
65,990 Ft
Buy
In stock 1 pcs
Order Code: AJAX20001
GARNI 080Q Wireless outdoor air quality sensor
Sensor Wireless outdoor air quality sensor for the GARNI 3055 Arcus Wi-Fi weather station.
-13 % off new 27,790 Ft New 32,300 Ft
Buy
Unsealed - in stock 1 pcs
Order Code: Garni22_03
Homematic IP Window and door sensor - optical plus - HmIP-SWDO-PL
Door and Window Sensor - wireless, compatible with Google Home, Home Connect and Homematic IP, connect via Radio frequency, range of 220m, central unit required, supported OS: Android and iOS, application in Czech
-17 % off new 16,690 Ft New 20,160 Ft
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Home22_21
Homematic IP Window and door sensor - optical plus, concealed mounting - HmIP-SWDO-I
Door and Window Sensor - wireless, compatible with Home Connect and Homematic IP, connect via WiFi 2,4 GHz, range of 230m, central unit required, supported OS: Android and iOS, application in Czech
-10 % off new 21,590 Ft New 24,010 Ft
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Home22_22
Homematic IP Rain Sensor - HmIP-SRD
Sensor The wireless rain sensor (HmIP-SRD) for outdoor use is part of the Homematic IP smart home system. The sensor with its high weather and weather protection offers a wide range of applications in conjunction with other Homematic IP devices. The device detects even the smallest amount of rain or snowfall and then transmits the information to the Central Unit (HmIP-HAP) and the connected Homematic IP devices, which react according to a predefined configuration.
-60 % off new 26,290 Ft New 65,790 Ft
Buy
Unsealed - in stock 1 pcs
Order Code: Home22_37
White Sengled Pulse Horn Set
Holder - For Sengled Pulse Flex Light Bulbs, made of brushed aluminium, 2 pcs
-69 % off new 8,190 Ft New 27,290 Ft
Buy
Unsealed - in stock 1 pcs
Order Code: SNG100b2
4.7 140×
TP-Link Tapo T310
Sensor smart temperature sensor
6,190 Ft
Buy
In stock 2 pcs
Order Code: TP23_013
4.8 17×
SONOFF SNZB-04P Zigbee Door/Window Sensor
Door and Window Sensor - wireless, compatible with Samsung SmartThings, IFTTT and eWeLink, range of 30m, central unit required, supported OS: Android and iOS, application in Czech, application in Czech and English
6,790 Ft
Buy
In stock 3 pcs
Order Code: SNFa104
GARNI 080Q Wireless outdoor air quality sensor
Sensor Wireless outdoor air quality sensor for the GARNI 3055 Arcus Wi-Fi weather station.
32,300 Ft
Buy
In stock 5 pcs at the supplier's
Order Code: Garni22_03
Hütermann Water flood minialarm - water leak detector - flood moisture sensor
Water Leak Detector - detects water gas, battery-powered, sound level: 85dB, standalone functional unit
5,060 Ft
Buy
In stock > 5 pcs at the supplier's
Order Code: EMPlist0131
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
12,290 Ft
Buy
On the way > 5 pcs
Expected 25/06/2026
Order Code: SNFa117
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
31,790 Ft
Buy
On the way > 5 pcs
Expected 31/07/2026
Order Code: SwBot2411
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
31,990 Ft
Buy
On the way 4 pcs
Expected 12/06/2026
Order Code: FIBR01f
4.6 16×
NEDIS WIFIRC10CBK
TV Remote Control - universal, compatible with set-top box, air conditioner, range 5 m, infra-red transmission technology, compatible app
from  7,810 Ft
Buy
On the way 1 pcs
Expected 24/06/2026
Order Code: NESDV075a1
iQtech Smartlife GW001, Zigbee 3.0 gateway, WiFi
Detector Zigbee 3.0 gateway, WiFi
16,890 Ft
Buy
On the way 1 pcs
Expected 30/06/2026
Order Code: iQ21TECH137
 
In the category Smart Home Sensors & Detectors on Alza.hu, we currently have a total of 432 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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