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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.sk.

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7 reasons to shop for Detectors on Alza.sk

  • 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

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310 Results
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi
Sensor - precise measurement using ultrasonic technology, suitable for any type of liquid, IP65 resistance, possibility of connection to a smart water valve, Immax NEO PRO app in Czech and 60 other languages compatible with iOS, Android, with voice assistants - Apple Siri shortcuts and TUYA systems, LIDL.
62.58 €
Buy
In stock > 5 pcs at the supplier's
Order Code: IMMX25092
1.0
Tellur WiFi Smart Motion Sensor, PIR, White
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Manufacturer app, range: security, application in English, power supply: Battery-Powered,
20.71 €
Buy
In stock 5 pcs at the supplier's
Order Code: TLLR2101
EVOLVEO SecuPro, wireless siren with solar power
Siren - closed system, area of use: security, power supply: Battery-Powered, Solar and USB
37.90 €
Buy
In stock 1 pcs at the supplier's
Order Code: EVO24013
SIGNIFY 17476/31/PN Virginia outdoor PIR motion sensor IP44, white
Motion Sensor - for lighting, Exterior, mains supply, input voltage: 230 V, reach of 10m, compatible with Manufacturer app, night orientation light, independently functional unit
22.92 €
Buy
In stock > 10 pcs at the supplier's
Order Code: HOMEaaa1418
Xtend Home EZS-PIRP30
Motion Sesnor , connect through Radio frequency with detection motion compatible with Tuya, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
11.90 €
Buy
In stock > 10 pcs at the supplier's
Order Code: Xtend25010
SIGNIFY 17476/87/PN Virginia outdoor PIR motion sensor IP44, grey
Motion Sesnor with detection motion compatible with Manufacturer app, range: security,
28.35 €
Buy
In stock > 5 pcs at the supplier's
Order Code: HOMEaaa1419
1.0
Nedis ALRMMW20WT
Motion Sensor - Exterior, battery powered, reach of 80m, sound volume: 85dB, independently functional unit
20.84 €
Buy
In stock > 5 pcs at the supplier's
Order Code: HOMEaaa1203
1.0
Smoot Air Motion
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Apple Siri shortcuts and Tuya, range: lighting and security, application in Czech, power supply: Battery-Powered,
20.45 €
Buy
In stock 3 pcs at the supplier's
Order Code: HLDdh18
EVOLVEO Alarmex Pro (ACSALMWTD) wireless flood detector
Water Leak Detector - detects water gas, battery-powered, range: 100 m, compatible with Manufacturer app, connection via radio waves, battery indication, standalone functional unit
19.90 €
Buy
In stock 1 pcs at the supplier's
Order Code: EVO22_11
Smoot ZigBee Leak Pro
Water Leak Detector - detects water gas, battery-powered, compatible with Apple Siri shortcuts and Tuya, connect via WiFi 2,4 GHz and WiFi 5 GHz, battery indication, central unit required to function,, app with Czech language support for Android and iOS
32.98 €
Buy
In stock > 5 pcs at the supplier's
Order Code: SMTphsnz5
Siemens Connected Home water leak detector SCH040ZB, ZigBee
Water Leak Detector - detects water gas, battery-powered, reaction time: 2s, sound level: 60dB, compatible with Connected Home, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
78.90 €
Buy
In stock 3 pcs at the supplier's
Order Code: SimS25001
Tellur WiFi Smart occupancy sensor, 2.4GHz radar sensor, USB-C, white
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion compatible with Manufacturer app, range: security, power supply: USB,
27.93 €
Buy
In stock 4 pcs at the supplier's
Order Code: TLR24002
BOT Smart Vibration Sensor VB1 Zigbee
Vibration Detector - detects vibration gas, battery-powered, range: 30 m, compatible with Tuya and Smartlife, connect via WiFi 2,4 GHz and WiFi 5 GHz, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Buy with code ALZADNI5 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 5 % s kódom ALZADNI5. Kliknite a kód sa uplatní automaticky. 26.93 €
28.35 €
Buy
In stock > 5 pcs at the supplier's
Order Code: BOTdet009
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
146.84 €
Buy
In stock 1 pcs at the supplier's
Order Code: MDTT24289
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
186.90 €
Buy
In stock 2 pcs at the supplier's
Order Code: MDTT24306
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
20.90 €
Buy
On the way 1 pcs
Expected 15/04/2026
Order Code: SNFa110
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.
Great price 193.90 € Save 6 €
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,
18.90 €
Buy
On the way > 5 pcs
Expected 20/04/2026
Order Code: SNFa101
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
81.90 €
Buy
On the way > 5 pcs
Expected 20/04/2026
Order Code: Airbi24001
4.9 12×
Solight Wireless motion detector/gong
Detector volume 65 - 80 dB(A), signal range max. 40m without obstacles, operational range of motion detection 0-8m, angle of view 15° vertically, angle of view 100° horizontally, 36 adjustable melodies, 3D rotatable sensor stand, wall mounting holes, power supply 3 x AA alkaline batteries (not included), sensor 3 x AAA alkaline batteries or external USB charger 5V DC (not included)
Amazing Deal 16.90 € Save 3 €
Buy
On the way 5 pcs
Expected 10/05/2026
Order Code: Solight23_18
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
17.90 €
Buy
On the way > 5 pcs
Expected 16/04/2026
Order Code: Sonoff23_07
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
41.71 €
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
37.90 €
Buy
On the way > 5 pcs
Expected 23/04/2026
Order Code: Moes22_38
3.0
ONDILO ICO Pool V2, smart water monitor, Cl/Br disinfection
Sensor - water quality analysis, minimal maintenance, durable construction
449.90 €
Buy
On the way 2 pcs
Expected 30/04/2026
Order Code: ONDa24002
 

Detectors

Detectors

In the category Detectors on Alza.sk, we currently have a total of 310 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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