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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.

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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).
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  • 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.

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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

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Smoke Detectors & Fire Alarms Smoke & Fire Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Vibration Detectors Vibration Smart Home Sensors & Detectors Smart Cable Detectors Power Line Metal Detectors Metal Smart Air Quality Meters Smart Air Quality Meters Accessories for Detectors and Sensors Accessories
 
352 Results
iNELS RFSF-100 Flood detector - Water Leak Detector
iNELS RFSF-100 Flood detector
Water Leak Detector - detects water gas, battery-powered, range: 160 m, reaction time: 2s, compatible with Manufacturer app, connection via radio waves, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
1,784,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet004
Ajax GlassProtect (8EU) ASP black - Vibration Detector
2 colors
Ajax GlassProtect (8EU) ASP black
Vibration Detector - detects vibration gas, battery-powered, compatible with Ajax and Manufacturer app, connection via radio waves, battery indication, adjustable sensitivity and protection against sabotage, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
1,676,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25009
iNELS RFMD-100 Motion detector - Motion Sesnor
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
iNELS RFMD-200 Wireless motion detector - Motion Sesnor
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
Homematic IP with brightness sensor, outdoor, white - Motion Sesnor
2 colors
Homematic IP with brightness sensor, outdoor, white
Motion Sesnor , connect through Radio frequency, closed system with detection motion and Light compatible with Manufacturer app, range: lighting and security, application in English, Czech and German, power supply: Power plug,
3,490,-
Buy
In stock > 5 pcs at the supplier's
Order Code: Home24001
MDT Technologies Motion sensor 55 × 55 mm, illuminance measurement, matte black - Motion Sensor
MDT Technologies Motion sensor 55 × 55 mm, illuminance measurement, matte black
Motion Sensor - for lighting, Exterior and Interior,, reach of 5m, compatible with Manufacturer app, connection via Ethernet, night orientation light and adjustable sensitivity, independently functional unit
3,517,-
Buy
In stock 1 pcs at the supplier's
Order Code: MDTT24289
MDT Technologies KNX occupancy sensor 360°, 4 Pyro, brightness measurement, matt white - Detection Sensor
MDT Technologies KNX occupancy sensor 360°, 4 Pyro, brightness measurement, matt white
Detection 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
5,215,-
Buy
In stock 1 pcs at the supplier's
Order Code: MDTT24307
MDT Technologies KNX occupancy sensor 360°, 3 Pyro, brightness measurement, matt white - Detection Sensor
MDT Technologies KNX occupancy sensor 360°, 3 Pyro, brightness measurement, matt white
Detection 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
PIR motion detector - for 55 mm frame, indoor, anthracite - HmIP-SMI55-A - Motion Sesnor
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
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2") - Water Leak Detector
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
Airthings Corentium Home 2 - Smart radon detector - Air Quality Meter
4.5 2×
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
4,449,-
From 102,- per month
Buy
On the way > 5 pcs
Expected 27/04/2026
Order Code: Air25001
Airthings View Radon - Air Quality Monitor - Air Quality Meter
4.2 6×
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.
4,899,-
From 113,- per month
Buy
On the way 3 pcs
Expected 12/05/2026
Order Code: Air22TNG3
Airbi CO2AIR digital carbon dioxide meter - Detector
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
1,999,-
Buy
On the way > 5 pcs
Expected 20/04/2026
Order Code: Airbi24001
SONOFF Zigbee Human Presence Sensor - Sensor
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
419,-
Buy
On the way > 5 pcs
Expected 17/04/2026
Order Code: Sonoff23_07
SONOFF SNZB-03P Zigbee Motion Sensor - Motion Sesnor
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,
429,-
Buy
On the way > 5 pcs
Expected 17/04/2026
Order Code: SNFa101
MOES CO Detector, Zigbee - Gas Leak Detector
4.8 8×
MOES CO Detector, Zigbee
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features self-diagnostics, cover material plastic, operating temperature from -10 to 40 °C,, compatible with Tuya and MOES, requires a central hub, app language options: Czech and English , compatible with Android and iOS
999,-
Buy
On the way > 5 pcs
Expected 17/04/2026
Order Code: Moes22_37
MOES Smoke Detector, Zigbee - Smoke Detector
4.0 3×
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
899,-
Buy
On the way > 5 pcs
Expected 17/04/2026
Order Code: Moes22_38
ONDILO ICO Pool V2, smart water monitor, Cl/Br disinfection - Sensor
3.0 2×
ONDILO ICO Pool V2, smart water monitor, Cl/Br disinfection
Sensor - water quality analysis, minimal maintenance, durable construction
11,499,-
From 264,- per month
Buy
On the way 2 pcs
Expected 30/04/2026
Order Code: ONDa24002
MOES Gas Leakage Detector, Zigbee - Gas Leak Detector
4.4 8×
MOES Gas Leakage Detector, Zigbee
Gas Leak Detector - detects natural gas, mains power supply, acoustic signals, notifications via push notifications, signal volume 70 dB, battery indication, features alarm, cover material plastic, operating temperature from -10 to 55 °C, operating humidity up to 95 %, mounting kit included, compatible with Tuya and MOES, requires a central hub, app language options: Czech and English , compatible with Android and iOS
699,-
Buy
On the way > 5 pcs
Expected 17/04/2026
Order Code: Moes22_41
iQtech Smartlife WL04 Zigbee Flood sensor, Zigbee 3.0 - Water Leak Detector
3.0 2×
iQtech Smartlife WL04 Zigbee Flood sensor, Zigbee 3.0
Water Leak Detector - detects water gas,, compatible with Tuya and Smartlife, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
619,-
Buy
On the way 1 pcs
Expected 16/04/2026
Order Code: iQ21TECH142
iQtech Smartlife MS03 Zigbee PIR motion sensor, Zigbee 3.0 - Detector
4.8 4×
iQtech Smartlife MS03 Zigbee PIR motion sensor, Zigbee 3.0
Detector PIR motion sensor, Zigbee 3.0
839,-
Buy
On the way 1 pcs
Expected 16/04/2026
Order Code: iQ21TECH140
Eve Water Guard Connected Water Leak Detector - Cable Extension - Extension Cable
Eve Water Guard Connected Water Leak Detector - Cable Extension
Extension Cable -
589,-
Buy
On the way 4 pcs
Expected 23/04/2026
Order Code: EVE1004
iQtech SmartLife GS02, Wi-Fi - Gas Leak Detector
iQtech SmartLife GS02, Wi-Fi
Gas Leak Detector - mains power supply, acoustic signals, cover material plastic, input voltage 230 V, power cable included, compatible with Tuya and Smartlife, standalone unit, app language: English , compatible with Android and iOS
939,-
Buy
On the way 1 pcs
Expected 16/04/2026
Order Code: iQtech23_03
Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa) - Motion Sesnor
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,
Buy with code ALZADNY20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky. 1,119,-
1,399,-
On the way > 5 pcs
Expected 23/04/2026
Order Code: Eve23_03

Detectors

Smoke Detectors & Fire Alarms Smoke & Fire Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Vibration Detectors Vibration Smart Home Sensors & Detectors Smart Cable Detectors Power Line Metal Detectors Metal Smart Air Quality Meters Smart Air Quality Meters Accessories for Detectors and Sensors Accessories
 

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Detectors

In the category Detectors on Alza.cz, we currently have a total of 352 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
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