Cheap detectors

On this page you will find detectors at the lowest prices, more so all detectors ranked from the lowest to the highest price. It will be easier to see products that are now marked at their lowest price. The item with the lowest price in this category is iGET SECURITY P9 - wireless water level detector for iGET SECURITY M3B and M2B marked at 5.69 € incl. VAT. Is this what you’re looking for?

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

14×

56.90 €

In stock > 5 pcs

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...

Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features alarm,...

IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi

60.52 €

Ordered on request

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...

Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi

5×

61.90 €

Ordered on request

Detector - Shelly GAS is a compact and highly sensitive CNG natural gas detector, bringing additional security for your home and family. Alarm: flashing LED & acoustic signal....

Homematic IP Smoke detector HmIP-SWSD-2

1×

63.51 €

In stock 1 pcs

Buy with code ALZADAYS10DE 57.16 € 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 - battery-powered , detection reach 40 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: test button, cover material plastic, operating...

Ajax GlassProtect (8EU) ASP white (38109)

67.66 €

Currently Unavailable

Vibration Detector - detects vibration gas, battery-powered, compatible with Ajax and Manufacturer app, connection via radio waves, battery indication, adjustable sensitivity and...

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Ajax GlassProtect (8EU) ASP black

67.66 €

Currently Unavailable

Vibration Detector - detects vibration gas, battery-powered, compatible with Ajax and Manufacturer app, connection via radio waves, battery indication, adjustable sensitivity and...

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Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor

12×

67.90 €

In stock 3 pcs

Air Quality Meter - detects temperature, humidity, TVOC (volatile organic compounds), temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %,...

4 variants

Motion Sensor - for alarm, Interior, battery powered, input voltage: 3V, reach of 7m, connection via WiFi 2,4 GHz and Bluetooth, independently functional unit, application in...

QINGPING CO2 & Temperature & RH Monitor

1×

69.90 €

Currently Unavailable

Sensor Monitor for real-time remote monitoring of carbon dioxide levels and temperature and humidity conditions

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Siemens Connected Home water leak detector SCH040ZB, ZigBee

76.30 €

Currently Unavailable

Water Leak Detector - detects water gas, battery-powered, reaction time: 2s, sound level: 60dB, compatible with Connected Home, battery indication, central unit required to...

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4 variants

Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features:...

Nedis WIFISA20CBK

2×

77.90 €

Currently Unavailable

Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), mains power supply, acoustic, visual signals, notifications via push notifications, battery indication and...

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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

EVOLVEO wireless outdoor siren for Alarmex / Sonix

6×

79.90 €

Ordered on request

Siren - closed system, area of use: security, power supply: Power plug

4 variants

Water Leak Detector - detects temperature and water gas, battery-powered, connect via Bluetooth, standalone functional unit,, app with Czech language support, app with Czech and...

AQARA Presence Sensor FP2

52×

82.99 €

In stock > 5 pcs

Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth, closed system with detection motion and Light compatible with Apple Home, Google Home, IFTTT and Aqara Home, range:...

Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, temperature measurement from -9.9 to 50 °C with accuracy 1 °C,...

Eve Water Guard - Water Leak Detector - compatible with Thread

2×

95.90 €

In stock 1 pcs

Water Leak Detector - detects water gas, mains power, sound level: 100dB, compatible with Apple Home, Apple Siri shortcuts and Samsung SmartThings, connect via Bluetooth,...

Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -10 to 50 °C with accuracy 0.8 °C, humidity measurement with accuracy 5 %, mains +...

Netatmo Smart Carbon Monoxide Alarm

20×

106.90 €

In stock > 5 pcs

Gas Leak Detector - battery-powered, notifications via push notifications, signal volume 85 dB, battery indication, cover material plastic, compatible with Apple Home, standalone...

EMOS GoSmart Air Quality Monitor E30300 with Wifi

11×

108.90 €

In stock > 5 pcs

Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, temperature measurement from 0 to 50 °C with accuracy 0.1 °C,...

GARNI 204 OneCare

115.90 €

In stock 2 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,...

Netatmo Smart Indoor Air Quality Monitor

46×

125.90 €

In stock > 5 pcs

Buy with code ALZADAYS40DE 75.54 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 40 % Rabatt mit dem Code ALZADAYS40DE. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt.

Air Quality Meter - detects temperature, humidity, noise, measurement range from 0 to 5000 ppm, deviation 50 ppm, gas detection sensitivity 50 ppm, temperature measurement from 0...

No longer sold

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