Try our cookies Alza.cz a. s., Company identification number 27082440, use cookies and other data to ensure the proper functioning of the website and, with your consent, also, among other things, to personalize advertising and the content of our websites. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.
Alzak icon
Catalogue
Price
-
Availability
Order status
Product type
(55)
(150)
(63)
(14)
(10)
Detection Type
(161)
(61)
(60)
(48)
(45)
Detection element
(78)
(31)
(25)
(16)
(15)
Range
1.1 m
2,000 m
-
Colour
(342)
(34)
(1)
(2)
(1)
(9)
(1)
Newest orders

Detectors

Detectors – same-day delivery available. Just make sure the product you want is in stock. Choose products to buy from the comfort of your home and have them delivered to your address, to an AlzaBox, or to one of our stores. Learn more about why shop on Alza.cz.

Continue

7 reasons to shop for Detectors on Alza.cz

  • We have a wide network of stores across the Czech Republic, where we follow all hygiene measures, as well as contactless AlzaBoxes (pick-up points).
  • You can see the availability of each item right away. Don't forget that we deliver on weekends too.
  • We accept most payment methods, including contactless and cryptocurrency.
  • You can easily return or exchange your product at any of our AlzaBoxes.
  • Need assistance? Our customer support is available 24/7.
  • We complement our range with accessories and additional services.
  • You'll find all the essential information for each product, and for some, user reviews to help with your selection.

What to consider when choosing Detectors?

If you're planning to get Detectors, there are a few aspects that can help you choose the right product. In the left menu, you can use the parametric filter to narrow down the selection to match your preferences. We also recommend sorting by popularity or price.

Make your selection easier. Click through our pre-made filters for the category: Detectors

Are you looking for the best Detectors? Browse products sorted by popularity, or consult the reviews from other users.

Cheapest vs. most expensive Detectors

If you are looking for products based on price, you can browse the lowest priced Detectors, or choose to sort by price from highest to lowest.

Detectors – main types

Hide description
396 Results
Watch Price/Availability
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
  5,158,-
Buy
In stock 2 pcs at the supplier's
Order Code: MDTT24307
Watch Price/Availability
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
Watch Price/Availability
Homematic IP Tilt and vibration sensor
Sensor - tilt and vibration sensor, closed system, central unit operation, Android OS + iOS, mobile notifications
  2,090,-
Buy
In stock > 5 pcs at the supplier's
Order Code: Home24003
Watch Price/Availability
MDT Technologies KNX occupancy sensor 360°, 3 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 installer, Channel Hkl, Reach 11m, max. range (Ø) presence 5m
  4,477,-
Buy
In stock 2 pcs at the supplier's
Order Code: MDTT24306
Watch Price/Availability
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
Watch Price/Availability
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
Watch Price/Availability
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
5.0
Watch Price/Availability
Airthings View Pollution - air quality monitor
Air Quality Meter is designed for indoor environments where it monitors humidity and temperature. You use batteries or a USB cable to power it. Easily connect the air detector to the app via Wi-Fi or HUB using Airthings Smartlink. The app is compatible with both Android and iOS operating systems. Airthings View Pollution also communicates with IFTTT, Google Assistant and Amazon Alexa voice assistants.
Great price 4,899,- Save 100,-
Buy
On the way > 5 pcs
Expected 15/09/2026
Order Code: Air22TNG2
4.7 32×
Watch Price/Availability
SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable
Water Leak Detector - detects Water gas, battery-powered, range: 130 m, compatible with Samsung SmartThings, IFTTT and eWeLink, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
  499,-
Buy
On the way > 5 pcs
Expected 06/10/2026
Order Code: SNFa110
Watch Price/Availability
X-Sense FS121 (12+1) Set of 12 XS01-M Wireless Smoke Detectors with SB550 Central Unit
Smoke Detector - temperature measurement from 4 to 38 °C, humidity measurement, battery-powered , detection reach 500 m, 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, input voltage 3V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
New arrival 6,999,-
Buy
On the way 4 pcs
Expected 14/09/2026
Order Code: XSEN26009
2.5
Watch Price/Availability
Sonoff MS01 Smart Soil Moisture Sensor
Sensor - humidity sensor, waterproof (IP55), compatible with Sonoff TH Origin/Elite sensor, cable 50 cm long, support for voice assistants, operating temperature 0 to 60 °C, humidity measurement 0-99% RH, RJ9 4P4C connector
  439,-
Buy
On the way > 5 pcs
Expected 06/10/2026
Order Code: SNFa058
4.7 13×
Watch Price/Availability
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
Ordered on request
Order Code: FIBR01f
4.5
Watch Price/Availability
Somfy Indoor motion sensor
Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Manufacturer app, range: security, application in English and Czech, power supply: Battery-Powered,
  2,049,-
Buy
Ordered on request
Order Code: SOMA05
3.0
Watch Price/Availability
EMOS GoSmart PIR sensor (motion sensor) with night light, Wi-Fi
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, range: lighting, application in English, Czech, German, Slovak, Hungarian and In Polish, power supply: Power plug,
Great price 519,- Save 30,-
Buy
Ordered on request
Order Code: EMOS24145
3.0
Watch Price/Availability
Imou gas sensor/detector ZGA1
Gas Leak Detector - mains power supply, detection reach 200 m, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, features self-diagnostics, automatic scenarios and alarm, cover material plastic, power adapter and mounting kit included, requires a central hub, app language: English , compatible with Android and iOS
  689,-
Buy
Ordered on request
Order Code: Imou23_40
Watch Price/Availability
Somfy Interior motion sensor for Tahoma control unit
Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with TaHoma, range: lighting, security and windows, doors, gates, power supply: Battery-Powered,
  3,079,-
Buy
Ordered on request
Order Code: SOMF22_02
4.8 30×
Watch Price/Availability
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  430,-
Currently Unavailable
Order Code: NU106b
4.6 13×
Watch Price/Availability
Shelly Blu Motion, Bluetooth
Motion Sesnor , connect through Bluetooth, open system with detection motion compatible with Samsung SmartThings, range: home control, application in English, Czech, German, Slovak and Hungarian, power supply: Battery-Powered,
  699,-
Currently Unavailable
Order Code: Shell23_034
4.1 11×
Watch Price/Availability
GARNI 206 OneCare
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, temperature measurement from -9.9 to 50 °C with accuracy 1 °C, humidity measurement from 1 to 99 % with accuracy 5 %, mains + battery-powered, visual signals, display, features: hours and alarm clock, cover material plastic, standalone unit
  2,349,-
Currently Unavailable
Order Code: GARNI2403
4.0 19×
Watch Price/Availability
KIDDE 29HD Smoke Detector
Smoke Detector - acoustic, visual signals, signal volume 85 dB, standalone unit
  399,-
Currently Unavailable
Order Code: SAFEH153
5.0
Watch Price/Availability
Ajax LeaksProtect White
Water Leak Detector - detects Water gas, battery-powered, range: 1300 m, reaction time: 0,15s, compatible with Ajax, connection via radio waves, protection against sabotage, central unit required to function, app with English language support for Android and iOS
  1,457,-
Currently Unavailable
Order Code: AJAX8050
4.7 23×
Watch Price/Availability
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  473,-
Currently Unavailable
Order Code: RY203g
5.0
Watch Price/Availability
FireAngel FA6111 optical fire detector with LED emergency lighting
Smoke Detector - battery-powered , acoustic signals, signal volume 85 dB, battery indication, operating temperature from 4 to 38 °C, operating humidity up to 90 %, standalone unit
  649,-
Currently Unavailable
Order Code: SAFEH178
4.5 11×
Watch Price/Availability
iGET HOME XP1B - wireless PIR motion sensor for iGET HOME X1 and X5 alarm
Motion Sesnor with detection motion, range: security, power supply: Battery-Powered,
  259,-
Currently Unavailable
Order Code: iGET23_013
In the category Detectors on Alza.cz, we currently have a total of 396 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.
Check out products sorted by price starting with the lowest price in the category cheap detectors Find products sorted from the most expensive to the cheapest in the category most expensive detectors Check out products sorted by price starting with the highest price in the category best sellers, best detectors You’ll find products sorted by reviews starting from the highest ranked in detectors reviews
P-DC1-WEB03