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 167 products to choose from. Customers have the most interest in SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable, which you can buy for 12.90 € 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

TESLA Smart Water Sensor

27×

27.90 €

In stock > 5 pcs

Buy with code ALZADAYS10DE 25.11 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

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...

Honeywell Home R200ST-N2 Interconnected fire alarm detector - smoke (optical) and temperature princi

9×

46.90 €

In stock > 5 pcs

Buy with code ALZADAYS10DE 42.21 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Smoke Detector - temperature measurement from 0 to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating...

Honeywell R200C-2, Carbon monoxide detector and detector, CO Alarm

104×

33.90 €

In stock > 5 pcs

Buy with code ALZADAYS10DE 30.51 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Gas Leak Detector - detects CO (carbon monoxide), smoke, measurement range from 3 to 330 ppm, gas detection sensitivity 28 ppm, battery-powered, acoustic signals, signal volume 85...

Honeywell Home R200S-N2 Interconnected fire detector alarm - smoke (optical) principle, battery oper

5×

42.90 €

In stock > 5 pcs

Smoke Detector - temperature measurement from 0 to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button, cover material plastic, operating...

Honeywell Home R200S-2 Fire detector alarm - smoke sensor (optical principle), battery operated

14×

24.90 €

In stock > 5 pcs

Buy with code ALZADAYS10DE 22.41 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Smoke Detector - temperature measurement to 70 °C, battery-powered , acoustic signals, signal volume 85 dB, features: test button and alarm, cover material plastic, operating...

Honeywell Home R200H-N2 Interconnected fire alarm detector - temperature principle, battery operated

4×

32.90 €

In stock > 5 pcs

Buy with code ALZADAYS10DE 29.61 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Temperature Sensor - interconnected fire detector, battery powered

Honeywell Home R200C-N2, Connected Carbon Monoxide Detector and Detector, CO Alarm

14×

56.90 €

In stock > 5 pcs

Buy with code ALZADAYS10DE 51.21 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS10DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

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...

GARNI 204 OneCare

115.90 €

In stock 3 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,...

AQARA Motion Sensor P1 (MS-S02)

48×

22.99 €

In stock > 10 pcs

Motion Sesnor , connect through Radio frequency, open system with detection motion and Light compatible with Apple Home, IFTTT and Aqara Home, range: security, application in...

Airthings View Radon - Air Quality Monitor

6×

203.90 €

In stock > 5 pcs

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....

Airthings View Pollution - air quality monitor

1×

169.90 €

In stock 3 pcs

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...

Airthings View Plus - complete air quality monitor

40×

475.90 €

In stock > 5 pcs

Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), dust particles, mains + battery-powered, visual...

Eufy Motion Sensor - White

7×

32.90 €

In stock > 5 pcs

Buy with code ALZADAYS20DE 26.32 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 20 % Rabatt mit dem Code ALZADAYS20DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion, range: security, application in English, power supply: Battery-Powered,