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 Elektrobock CN11 Mini marked at 7.19 € incl. VAT. Is this what you’re looking for?

GARNI 206 OneCare

11×

98.06 €

In stock > 5 pcs at the supplier's

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,...

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Homematic IP Smart Meter Interface

99.78 €

Currently Unavailable

Sensor - interface for smart meters, closed system, operation via central unit, OS Android + iOS, mobile notifications

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Homematic IP Interface for gas meter

1×

99.78 €

Currently Unavailable

Sensor - interface for gas meter, closed system, operation via central unit, OS Android + iOS, mobile notifications

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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 +...

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EMOS GoSmart Air Quality Monitor E30300 with Wifi

12×

104.64 €

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,...

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Netatmo Smart Carbon Monoxide Alarm

20×

108.55 €

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...

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Netatmo Smart Smoke Alarm

46×

108.55 € Save 10.45 €

In stock > 5 pcs

Smoke Detector - acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, holder and mounting kit...

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Ajax MotionProtect Curtain White

2×

109.51 €

Currently Unavailable

Motion Sesnor , connect through Radio frequency with detection motion compatible with Ajax, range: security, application in English, power supply: Battery-Powered,

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Ajax MotionProtect Curtain Black

1×

109.51 €

Currently Unavailable

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

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X-Sense FS31 (3+1) Set of 3 XS01-M Wireless Smoke Detectors with SB550 Base Station

113.90 €

On the way > 5 pcs

Expected 09/10/2026

3 sizes

Smoke Detector - temperature measurement from 4 to 38 °C, humidity measurement, battery-powered , detection reach 500 m, reaction time 1 s, acoustic, visual signals, notifications...

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Ajax MotionProtect Plus White

2×

115.57 €

Currently Unavailable

Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Ajax, range: security, application in English, power supply: Battery-Powered,

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Ajax MotionProtect Plus Black

2×

115.57 €

Currently Unavailable

Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Ajax, range: security, application in English, power supply: Battery-Powered,

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SAFE SET FIRE BASIC - 1x SAFE50HUB-WRF, 2x SAFE10Y30-RF

116.47 € Save 2.53 €

In stock 2 pcs at the supplier's

Security Kit - includes 1x central unit (SAFE50HUB-WRF) and 2 x fire detectors (SAFE10Y30-RF), The set offers extended smoke and fire protection for the home, Wirelessly connected...

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

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Ajax CombiProtect White

4×

118.66 €

Ordered on request

Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Ajax and Manufacturer app, range: security, application in English and Czech,...

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Ajax CombiProtect Black

4×

118.66 €

Currently Unavailable

Motion Sesnor , connect through Radio frequency, open system with detection motion and Glass breakage compatible with Ajax and Manufacturer app, range: security, application in...

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Eve Water Guard - Water Leak Detector - compatible with Thread

Add AlzaPlus+ and save instantly 95.92 €

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

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SAFE Motion Cam (PhOD), white

130.90 € New 138.90 €

Unsealed - in stock 1 pcs

Sensor - wireless dual PIR motion detector with photo camera, images in case of an alarm, or on request (PhOD), Motion detection up to 12 metres, which reliably ignores the...

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Homematic IP Rain Sensor - HmIP-SRD

159.90 €

In stock 4 pcs

Buy with code ALZADNI15 135.92 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 15 % s kódom ALZADNI15. Kliknite a kód sa uplatní automaticky.

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...

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SAFE Motion Cam (PhOD), white

138.90 €

In stock 3 pcs

Sensor - wireless dual PIR motion detector with photo camera, images in case of an alarm, or on request (PhOD), Motion detection up to 12 metres, which reliably ignores the...

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

165.90 €

In stock 1 pcs

Buy with code ALZADNI15 141.02 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 15 % s kódom ALZADNI15. Kliknite a kód sa uplatní automaticky.

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...