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Hundreds of categories, thousands of products, millions of details and user reviews for detectors. How can you make sense of all of this? Try our Alza Test, which guarantees an objective selection based on customers' experiences. How the products from detectors rank are based solely on various data and feedback from actual people who have purchased the products.

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MDT Technologies KNX occupancy sensor 360° L3, temperature measurement, matt white

201.86 €

In stock 2 pcs at the supplier's

Sensor - Occupancy detector with 3 sensors, temperature sensor and integrated white LED orientation light, version for installation in hollow ceilings, temperature sensor, 3...

SIGNIFY 17476/87/PN Virginia outdoor PIR motion sensor IP44, grey

33.48 €

In stock > 5 pcs at the supplier's

Motion Sesnor with detection motion compatible with Manufacturer app, range: security,

HEATIT Z-Smoke Multisensor 230VAC White, Z-Wave smoke sensor

166.90 €

In stock 1 pcs

Smoke Detector - detects motion, temperature, mains power supply, detection reach 100 m, acoustic signals, signal volume 85 dB, features: test button and alarm, cover material...

FireAngel Temperature detector FA6215

28.90 €

In stock 1 pcs

Smoke Detector - battery-powered , acoustic signals, signal volume 85 dB, features: test button, operating temperature from 4 to 38 °C, operating humidity up to 90 %, battery...

FireAngel FA3313 CO detector with two replaceable AA batteries

29.90 €

In stock 4 pcs

Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, battery indication, features test button, temporary shutdown and self-diagnostics, cover...

Smoot ZigBee Leak Pro

33.12 €

In stock > 5 pcs at the supplier's

Buy with code ALZADNI20 26.50 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky.

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...

Homematic IP Rain Sensor - HmIP-SRD

159.90 €

In stock 4 pcs

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...

GARNI 204 OneCare

116.90 €

In stock > 5 pcs

Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -40 to 70 °C, humidity measurement from 1 to 99 %, mains + battery-powered,...

Ajax MotionCam Black

204.88 €

In stock 1 pcs

Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Ajax, range: security, application in English, Czech, German and Slovak, power...

Elektrobock IR28B Profi

34.90 €

In stock 1 pcs

Motion Sesnor with detection motion, range: lighting, power supply: Power plug,

ONDILO ICO Pool V2 Essential +, smart water monitor and calibration kit - Cl/Br disinfection

494.90 €

On the way 2 pcs

Expected 15/06/2026

Detector - smart water monitor, water temperature sensors, water quality analysis, intuitive, low maintenance

ONDILO ICO Spa V2 Essential +, smart water monitor and calibration kit - Cl/Br disinfection

494.90 €

On the way 1 pcs

Expected 15/06/2026

Detector - smart water monitor, for monitoring the water quality in the hot tub, compatible with chlorine and bromine sanitizers, intuitive, low maintenance

ONDILO ICO Pool V2 Essential +, smart water monitor and calibration kit - salt disinfection

536.90 €

On the way 1 pcs

Expected 15/06/2026

Detector - smart water monitor, sensors monitoring the water temperature, water quality analysis, intuitive, low maintenance, Compatible with systems using salt for water...

Eve Water Guard Connected Water Leak Detector - Cable Extension

EMOS GoSmart Water Leak Detector P56000S, ZigBee

28.06 €

Ordered on request

Water Leak Detector - detects water gas, battery-powered, sound level: 85dB, compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, battery indication,...

EMOS Microwave sensor (motion sensor) IP20, 2000 W, 360°, mounted

17.99 €

Ordered on request

Motion Sesnor with detection motion, range: lighting, power supply: Power plug,

EMOS PIR sensor (motion sensor) IP20, 1200 W, 360°, mounted

10.86 €

Ordered on request

Motion Sesnor with detection motion, range: lighting, power supply: Power plug,

EMOS GoSmart PIR sensor (motion sensor) IP20, 60°, ZigBee

20.09 €

Ordered on request

Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Lidl Home, Smartlife and EMOS GoSmart, range: lighting and security,...

EMOS PIR sensor (motion sensor) IP20, 1200 W, 360°, built-in

11.70 €

Ordered on request

Motion Sesnor with detection motion, range: lighting, power supply: Power plug,

EMOS Microwave sensor (motion sensor) IP20, 1200 W, 360°, built-in

20.09 €

Ordered on request

Motion Sesnor with detection motion, range: lighting, power supply: Power plug,

Meross Smart Water Leak Sensor

16.90 €

Currently Unavailable

Buy with code ALZADNI20 13.52 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky.

Sensor - dual detection probe (upper and lower), detection of small droplets and larger leaks, instant acoustic alarm 100 dB, alerts via push notifications to your phone,...

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