Try our cookies Alza.cz a. s., Company identification number 27082440, uses cookies to ensure the functionality of the website and with your consent also to personalisage the content of our website. 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
(31)
(86)
(28)
(9)
(9)
Detection Type
(98)
(46)
(34)
(28)
(28)
Detection element
(44)
(12)
(9)
(9)
(8)
Range
1.1 m
1,700 m
-
Colour
(208)
(18)
(1)
(1)
(4)

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.hu.

Continue

7 reasons to shop for Detectors on Alza.hu

  • 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
234 Results
GARNI 204 OneCare
Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -40 to 70 °C, humidity measurement from 1 to 99 %, mains + battery-powered, detection reach 100 m, acoustic, visual signals, battery indication and display, features: hours and alarm clock, power adapter and battery included, standalone unit
52,990 Ft
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: GARNI19014
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
Discounted -7 % 14,480 Ft 15,650 Ft
Buy
In stock
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26005
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.
65,790 Ft
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Home22_37
4.4
EVOLVEO wireless water level detector for Alarmex/Sonix
Water Leak Detector - detects water gas, battery-powered, central unit required to function
5,090 Ft
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: RY202f
4.0
AVATTO WiFi Smart MmWave Radar Sensor
Sensor – micro-motion detection, Wi-Fi connection, control via the app, compatible with Tuya, Smart Life and AVATTO, adjustable sensitivity, mobile notifications, Voice control via Alexa and Google Home, LED indicator ring, easy to install, power via USB-C, compact dimensions 12 mm
-22 % off new 5,290 Ft New 6,790 Ft
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: AVT062a
Homematic IP Smart Meter Interface
Sensor - interface for smart meters, closed system, operation via central unit, OS Android + iOS, mobile notifications
-12 % off new 32,990 Ft New 37,500 Ft
Buy
Unsealed - in stock 1 pcs
Order Code: Home24005
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
GARNI 204 OneCare
Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -40 to 70 °C, humidity measurement from 1 to 99 %, mains + battery-powered, detection reach 100 m, acoustic, visual signals, battery indication and display, features: hours and alarm clock, power adapter and battery included, standalone unit
-40 % off new 31,790 Ft New 52,990 Ft
Buy
Unsealed - in stock 1 pcs
Order Code: GARNI19014
4.7 15×
Bentech C999 Carbon Monoxide Autonomous Fire Detector
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, battery indication, features alarm, cover material plastic, operating temperature from 5 to 40 °C, operating humidity from 20 to 90 %, standalone unit
5,480 Ft
Buy
In stock > 10 pcs at the supplier's
Order Code: DEtOS328
4.7 20×
CO-man Mini C11-L stand-alone carbon monoxide fire detector
Gas Leak Detector - detects CO (carbon monoxide), measurement range to 999 ppm, battery-powered, acoustic signals, signal volume 85 dB, battery indication and display, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 15 to 90 %, standalone unit
Discounted -3 % 8,930 Ft 9,220 Ft
Buy
In stock 3 pcs at the supplier's
Order Code: CPGdete03
4.4 11×
Fireman fire alarm and smoke detector JB-S01
Smoke Detector - battery-powered , acoustic signals, signal volume 90 dB, features: test button, operating temperature from 0 to 40 °C, operating humidity from 30 to 90 %, battery included, standalone unit
3,090 Ft
Buy
In stock > 10 pcs at the supplier's
Order Code: CPGdete01
5.0
Fireman miniature fire alarm and smoke detector SeeSafe JB-S11
Smoke Detector - battery-powered , detection reach 60 m, acoustic signals, signal volume 90 dB, battery indication, features: test button, operating temperature from 0 to 40 °C, operating humidity from 30 to 90 %, battery and mounting kit included, standalone unit
5,320 Ft
Buy
In stock > 10 pcs at the supplier's
Order Code: CPGdete02
4.9 27×
SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable
Sensor - protection against water damage in your home, Zigbee, email alerts, SMS or mobile phone notifications, on a CR2477 battery (battery not included), degree of protection IP67, Zigbee2MQTT and Home Assistant support, cable included for extended detection range
8,290 Ft
Buy
On the way 1 pcs
Expected 15/04/2026
Order Code: SNFa110
4.5
Airthings Corentium Home 2 - Smart radon detector
Air Quality Meter - detects temperature, humidity, radon, battery-powered, visual signals, notifications via push notifications, display, operating temperature from 4 to 40 °C, operating humidity to 85 %, battery included, standalone unit requires a central hub
Discounted -3 % 70,220 Ft 72,500 Ft
Buy
On the way > 5 pcs
Expected 27/04/2026
Order Code: Air25001
4.2
Airthings View Radon - Air Quality Monitor
Air Quality Meter is designed for indoor environments where it monitors humidity, temperature and the amount of radon in the air. 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 Radon also communicates with IFTTT, Google Assistant and Amazon Alexa voice assistants.
82,690 Ft
Buy
On the way 3 pcs
Expected 12/05/2026
Order Code: Air22TNG3
4.6 22×
SONOFF SNZB-03P Zigbee Motion Sensor
Motion Sesnor , open system with detection motion compatible with Samsung SmartThings, IFTTT and eWeLink, range: lighting, application in English and Czech, power supply: Battery-Powered,
7,190 Ft
Buy
On the way > 5 pcs
Expected 20/04/2026
Order Code: SNFa101
4.5 25×
SONOFF Zigbee Human Presence Sensor
Sensor - for motion detection, functionality based on 5.8 GHz microwave radar, three levels of sensitivity, detection distance up to 4 m, compatible with smart bulbs, Smart Switch and smart LED strips, possibility of fixing the base to the wall with 3M tape or screws, the sensor is fixed magnetically, USB-C power, ZigBee Hub central unit needed, Amazon Alexa support, Google Home, Smartthings, Alice and IFTTT
7,090 Ft
Buy
On the way > 5 pcs
Expected 16/04/2026
Order Code: Sonoff23_07
4.8 18×
Airbi CO2AIR digital carbon dioxide meter
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
33,690 Ft
Buy
On the way > 5 pcs
Expected 20/04/2026
Order Code: Airbi24001
3.0
ONDILO ICO Pool V2, smart water monitor, Cl/Br disinfection
Sensor - water quality analysis, minimal maintenance, durable construction
184,990 Ft
Buy
On the way 2 pcs
Expected 30/04/2026
Order Code: ONDa24002
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
Discounted -3 % 29,770 Ft 30,730 Ft
Buy
On the way 5 pcs
Expected 17/04/2026
Order Code: FIBR01f
4.8 11×
Airthings Corentium Home (224 B/m3) - digital radon detector
Air Quality Meter - detects radon, battery-powered, display, features: memory, cover material plastic, operating temperature from 4 to 40 °C, battery included, standalone unit
Discounted -3 % 66,160 Ft 68,300 Ft
Buy
On the way 4 pcs
Expected 27/04/2026
Order Code: Air21TNG4
3.8 24×
iQtech SmartLife CS01W Combo CO + Smoke Detector, Wi-Fi
Smoke Detector - detects gas, measurement range from 50 to 300 ppm, battery-powered , acoustic signals, signal volume 85 dB, cover material plastic, compatible with Tuya, standalone unit, app language options: Czech and English , compatible with Android and iOS
15,010 Ft
Buy
On the way > 5 pcs
Expected 16/04/2026
Order Code: iQ21TECH134
4.0
MOES Smoke Detector, Zigbee
Smoke Detector - temperature measurement from 0 to 55 °C, battery-powered , detection reach 15 m, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, operating temperature from 0 to 55 °C, battery and mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
14,890 Ft
Buy
On the way > 5 pcs
Expected 23/04/2026
Order Code: Moes22_38
4.8
iQtech Smartlife MS03 Zigbee PIR motion sensor, Zigbee 3.0
Detector PIR motion sensor, Zigbee 3.0
14,190 Ft
Buy
On the way 1 pcs
Expected 16/04/2026
Order Code: iQ21TECH140
24 more... Top
1 ... 34567 ... 10
 

Detectors

Detectors

In the category Detectors on Alza.hu, we currently have a total of 234 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-WEB25
30 év tapasztalat az e-kereskedelemben
3 million megrendelés évente
a vásárlók 98% visszatérõ
Több infó