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Cheap smart Home Sensors & Detectors

On this page you will find smart Home Sensors & Detectors at the lowest prices, more so all smart Home Sensors & Detectors ranked from the lowest to the highest price. It will be easier to see products that are now marked at their lowest price. The item with the lowest price in this category is Shelly DS18B20 Temperature Sensor for 3.5mm jack (1m) marked at 4.49 € incl. VAT. Is this what you’re looking for?
346 Results
4.4
Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi
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 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HNW22_06
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
47.90 €
Currently Unavailable
Order Code: SAFEH26008
Homematic IP Temperature and humidity sensor - indoor, anthracite
Sensor - wireless wall-mounted temperature and humidity sensor for indoor use, enables precise temperature control in conjunction with one or more radiator thermostatic heads or floor heating actuators, power supply 2x AAA batteries, anthracite colour
48.78 €
Currently Unavailable
Order Code: Home24011
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
Discounted -37 % 48.90 € 77.90 €
Buy
On the way > 5 pcs
Expected 17/07/2026
Order Code: SwBot2411
Ubiquiti UniFi SuperLink Environmental
Sensor - Temperature, humidity, light and water, SuperLink, CR123A battery, IPX5
Great price 49.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Ubiq26354
4.9 10×
Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Light compatible with Apple Home, Google Home and Samsung SmartThings, range: lighting, security and home control, application in English and German, power supply: Battery-Powered,
49.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Eve23_03
SAFE Motion Guard, white
Sensor - wireless motion detector equipped with dual PIR sensor detecting motion at a distance of up to 12 meters, PET immunity up to a weight of 18 kg and 50 cm height, The detector is powered by a replaceable battery that allows continuous operation of the detector for up to 4 years, colour white
Discounted -4 % 50.26 € 52.90 €
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In stock
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26003
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 - 25.39 €/pcs
50.77 €
Currently Unavailable
Order Code: WiZ25002
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
50.78 €
Currently Unavailable
Order Code: SimS25003
5.0
Tedee Door Sensor, white
Sensor - real-time door status detection, door status display in tedee app, long-open door alert, wireless operation, Bluetooth
50.90 €
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In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Tedee25005
4.4 10×
Shelly Smoke Plus, smoke detector, WiFi, BT (without battery - CR123A)
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features: automatic scenarios and alarm, cover material plastic, operating temperature from 0 to 55 °C, operating humidity from 30 to 95 %, battery and mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android, Windows and iOS
50.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Shell23_002
3.0
EVOLVEO Alarmex Pro (ACSALMIMS) wireless indoor siren
Siren - closed system, area of use: security, OS supported: Android and Windows, compatible with Manufacturer app, power supply: Power plug
50.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EVO22_05
4.7 40×
SwitchBot Thermo/Hygrometer bundle with HUB
Sensor - measures temperature and humidity, mobile apps, degree of protection IP65, strap for hanging, updates the measured values every 4 seconds, package also includes HUB for remote synchronization
51.90 €
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In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SwBot21_27
4.5 14×
Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm
Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 3 to 330 ppm, gas detection sensitivity 28 ppm, battery-powered, detection reach 100 m, acoustic signals, signal volume 85 dB, features test button and alarm, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 25 to 95 %, input voltage 3V, battery included, standalone unit
Amazing Deal 52.02 €
Currently Unavailable
Order Code: HNW22_02
1.0
EVOLVEO Alarmex Pro ( ACSALMOUS) wireless outdoor light and sound siren
Siren - closed system, area of use: security, OS supported: Android and iOS, compatible with Manufacturer app, power supply: Power plug, in Czech and English
52.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EVO22_04
4.0
Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi
Detector - Shelly GAS is a compact and highly sensitive CNG natural gas detector, bringing additional security for your home and family. Alarm: flashing LED & acoustic signal. Alarm sensitivity: 6% LEL, noise level: ?70dB. Smart switching: Yes. Local and remote control: Yes. Dimensions: 89.5mm x 89.5mm x 38mm. Connection not included. Mobile app available in Czech, Slovak, English and other languages.
52.90 €
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In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SHELLa0009
4.8 28×
Philips Hue Outdoor Motion Sensor
Motion Sesnor , closed system with detection motion compatible with Apple Home and Philips Hue, power supply: Battery-Powered,
52.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: PHL19021
3.5
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
53.90 €
Currently Unavailable
Order Code: iGt21012
4.2 29×
IMMAX NEO LITE Smart pool temperature sensor + 2x indoor temperature and humidity sensor
Temperature Sensor - TUYA, 2.4GHz WiFi connection, indoor and outdoor unit, monitoring the current pool water temperature, indoor temperature and humidity, date and time controlled from the internet with manual settings, alarm clock with snooze option, viewing the measured values in Immax NEO PRO, iOS compatible, Android, supports Apple Siri shortcuts, TUYA and LIDL systems
56.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: IMMX25001
4.7 16×
FIBARO Motion Sensor
Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth with detection motion, Light and temperature, range: security, application in English, Czech, German and Slovak, power supply: Battery-Powered,
56.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: FIBR01b
SONOFF AirGuard PM2.5/PM10 Matter Over Wi-Fi Air Quality Monitor SAWF-07P
Air Quality Meter - detects temperature, humidity, dust particles, measurement range from 400 to 5000 ppm, gas detection sensitivity 50 ppm, temperature measurement from 0 to 50 °C with accuracy 0.5 °C, humidity measurement from 5 to 99 % with accuracy 3 %, acoustic, visual signals, notifications via push notifications, display, features: alarm, cover material plastic, operating temperature from -10 to 50 °C,, input voltage 5 V, power cable included, compatible with Apple Home, Google Home, Samsung SmartThings, eWeLink and Home Assistant, standalone unit, app language options: Czech and English, compatible with Android and iOS
57.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SNF2612
4.5 26×
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
57.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Nuki22_03
3.3
Nedis ZBDCO11WT
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features alarm, cover material plastic, operating temperature to 50 °C, battery included, compatible with Nedis SmartLife, standalone unit, compatible with Android and iOS
58.90 €
Buy
Ordered on request
Order Code: Nedis23_002
4.0
SONOFF AirGuard CO2 Matter Over Wi-Fi Air Quality Monitor SAWF-08P
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, gas detection sensitivity 50 ppm, temperature measurement from 0 to 50 °C with accuracy 0.5 °C, humidity measurement from 5 to 99 % with accuracy 3 %, acoustic, visual signals, notifications via push notifications, display, features: alarm, cover material plastic, operating temperature from -10 to 50 °C,, input voltage 5 V, power cable included, compatible with Apple Home, Google Home, Samsung SmartThings, eWeLink and Home Assistant, standalone unit, app language options: Czech and English, compatible with Android and iOS
Discounted -10 % 58.98 € 65.90 €
Buy
In stock
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SNF2611
 
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