Refresh the page
HomeCatalogShopping Cart
Orders
Menu

Best sellers, best detectors

We also think that you deserve the best. That’s why on this page, we ranked detectors from the most sold to the least sold. You have 403 products to choose from. Customers have the most interest in EMOS GoSmart Carbon Monoxide Detector TCS0101W, Wi-Fi, which you can buy for 829 Kč incl. VAT. If you’re intrested in detectors in terms of the highest reviews, then look at the detectors reviews and tests category.
All detectors
All from 403
FireAngel FA3820 CO detector with integrated power supply for 10 years of operation - Gas Leak Detector
FireAngel FA3820 CO detector with integrated power supply for 10 years of operation
899,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, battery indication, features test button, temporary shutdown and...
Added to cart
- +
AQARA Motion and Light Sensor P2 - Motion Sesnor
AQARA Motion and Light Sensor P2
889,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 800,-
Motion Sesnor , connect through Bluetooth, open system with detection motion and Lights compatible with Apple Home and Aqara Home, range: lighting and security, application in...
Added to cart
- +
Airbi CO2AIR digital carbon dioxide meter - Detector
Airbi CO2AIR digital carbon dioxide meter
1,999,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
Added to cart
- +
Bentech C686 WiFi autonomous carbon monoxide detector - Gas Leak Detector
Bentech C686 WiFi autonomous carbon monoxide detector
Discounted -17 % 499,- 604,-
In stock > 10 pcs at the supplier's
Gas Leak Detector - detects CO (carbon monoxide), measurement range from 30 to 300 ppm, gas detection sensitivity 100 ppm, battery-powered, acoustic, visual signals, notifications...
Added to cart
- +
Nedis ALRMMW20WT - Motion Sesnor
Nedis ALRMMW20WT
Discounted -9 % 499,- 549,-
In stock > 5 pcs at the supplier's
Motion Sesnor , closed system with detection motion, range: security, power supply: Battery-Powered,
Added to cart
- +
Alecto COA3910 - Gas Leak Detector
Alecto COA3910
499,-
In stock > 5 pcs at the supplier's
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, battery indication, features alarm, cover material plastic, input voltage...
Added to cart
- +
Ajax DoorProtect Plus White - Door and Window Sensor
Ajax DoorProtect Plus White
1,895,-
In stock > 5 pcs at the supplier's
2 colors
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, deviation angle adjustment and protection against sabotage, range of 1000m, central unit...
Added to cart
- +
Elektrobock IR22A Classic - Motion Sesnor
Elektrobock IR22A Classic
Great price 285,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Added to cart
- +
Meross Smart Water Leak Sensor Kit - Sensor
Meross Smart Water Leak Sensor Kit
729,-
In stock > 5 pcs
2 colors
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 365,-
Sensor - water leak sensor, for a safe home, It works 24/7, powered by replaceable CR123A battery (lifetime 18 months), battery indicator, IP67 waterproof, alerts via the app, 60...
Added to cart
- +
Honeywell Home Remote shut-off valve L5 WiFi 3/4" and leak detector - Humidity Sensor
Honeywell Home Remote shut-off valve L5 WiFi 3/4" and leak detector
6,099,-
In stock 2 pcs at the supplier's
Humidity Sensor - mains power, acoustic signalling, notifications via push notifications, cover material plastic, operating temperature up to 50 °C, degree of protection IP44,...
Added to cart
- +
TESLA Smart Water Sensor - Water Leak Detector
TESLA Smart Water Sensor
669,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 569,-
Water Leak Detector - detects Water gas, battery-powered, range: 50 m, compatible with Tuya, Smartlife and Tesla Smart, connection via radio waves, battery indication, central unit...
Added to cart
- +
Airthings Wave plus, black - air quality, radon, humidity, temperature, VOC, CO2 and pressure sensor - Air Quality Meter
Airthings Wave plus, black - air quality, radon, humidity, temperature, VOC, CO2 and pressure sensor
5,699,-
From 105,- per month
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 4,559,-
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, deviation...
Added to cart
- +
Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa) - Door and Window Sensor
Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
1,399,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 1,119,-
Door and Window Sensor - wireless, compatible with Apple Home, Google Home and Samsung SmartThings, connect via Bluetooth, central unit required, supported OS: Android and iOS,...
Added to cart
- +
Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm - Gas Leak Detector
Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm
1,398,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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...
Added to cart
- +
Ajax DoorProtect White - Door and Window Sensor
Ajax DoorProtect White
1,384,-
In stock > 5 pcs at the supplier's
2 colors
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, range of 1200m, central unit required, supported OS: Android, Windows and iOS, application in...
Added to cart
- +
FireAngel FA6115 Optical Fire Detector - Smoke Detector
FireAngel FA6115 Optical Fire Detector
549,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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...
Added to cart
- +
Airthings View Pollution - air quality monitor - Air Quality Meter
Airthings View Pollution - air quality monitor
Great price 4,899,- Save 100,-
From 85,- per month
On the way > 5 pcs
Expected 15/09/2026
Add AlzaPlus+ and save instantly 3,674,-
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...
Added to cart
- +
Elektrobock LX118 - Motion Sesnor
Elektrobock LX118
299,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor with detection motion, range: electrical installation, power supply: Power plug,
Added to cart
- +
Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi - Smoke Detector
Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi
1,148,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - temperature measurement from 0 to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating...
Added to cart
- +
Smoot Air Presence Chytrý senzor přítomnosti - Sensor
Smoot Air Presence Chytrý senzor přítomnosti
490,-
In stock 3 pcs at the supplier's
Sensor
Added to cart
- +
EZVIZ Water leak sensor T10C - Water Leak Detector
EZVIZ Water leak sensor T10C
469,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 200 m, compatible with Google Home and EZVIZ, connect via WiFi 2,4 GHz, battery indication, central...
Added to cart
- +
Airthings Corentium Home (224 B/m3) - digital radon detector - Air Quality Meter
Airthings Corentium Home (224 B/m3) - digital radon detector
4,217,-
From 97,- per month
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects radon, battery-powered, display, features: memory, cover material plastic, operating temperature from 4 to 40 °C, battery included, standalone unit
Added to cart
- +
Opti Radon Meter RN-55 Optigrund - Gas Leak Detector
Opti Radon Meter RN-55 Optigrund
4,199,-
In stock 5 pcs at the supplier's
Gas Leak Detector - battery-powered, battery indication and display, features test button and memory, cover material plastic, operating temperature from 4 to 50 °C,, battery...
Added to cart
- +
Elektrobock CN15 - Motion Sesnor
Elektrobock CN15
259,-
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Added to cart
- +
Previous
24 more...
Other

No longer sold

Archive
Chcete doručiť tovar na Slovensko? Prezrite si Detektory
Für den Versand nach Deutschland, besuchen Sie bitte Detektoren und Sensoren
Für den Versand nach Österreich, besuchen Sie bitte Detektoren und Sensoren
Magyarországra rendelnél? Látogasd meg ezt a termékkategóriát Szivárgás érzékelők és detektorok

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.

More information
I understand Detailed settings Reject everything
P-DC1-WEB12