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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 Alum Motion Sensor with Voice Announcement – Shop Welcome Chime, 360° marked at 179 Kč incl. VAT. Is this what you’re looking for?

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Smart Air Quality Meters

Accessories All detectors

406 Results

3.9 8×

GARNI 210T OneCare

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 + battery-powered, acoustic, visual signals, battery indication and display, cover material plastic, power cable included, compatible with Tuya and Smartlife, standalone unit, compatible with Android and iOS

2,489,-

Buy

In stock > 5 pcs

Order Code: GARNI19013

4.1 12×

EMOS GoSmart Air Quality Monitor E30300 with Wifi

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, humidity measurement from 20 to 90 % with accuracy 1 %, mains power supply, acoustic, visual signals, notifications via push notifications, display, features: hours, alarm clock, memory, automatic scenarios and alarm, power cable included, compatible with Tuya, Lidl Home, Smartlife and EMOS GoSmart, standalone unit requires a central hub, app language options: Czech and English, compatible with Android and iOS

2,490,-

Buy

In stock > 5 pcs

Order Code: EMOS24070

3.5 2×

Somfy Door and window sensor

Door and Window Sensor -, compatible with Manufacturer app, connect via Radio frequency, range of 200m, separately functional unit, supported OS: Android and iOS

2,499,-

Buy

In stock 1 pcs

Order Code: SOM2115

Netatmo Smart Carbon Monoxide Alarm - Gas Leak Detector

4.2 20×

Netatmo Smart Carbon Monoxide Alarm

Gas Leak Detector - battery-powered, notifications via push notifications, signal volume 85 dB, battery indication, cover material plastic, compatible with Apple Home, standalone unit, app language options: Czech and English , compatible with Android, Windows and iOS

2,599,-

Buy

In stock > 5 pcs

Order Code: NetA_21_01

Netatmo Smart Smoke Alarm - Smoke Detector

4.4 46×

Netatmo Smart Smoke Alarm

Smoke Detector - acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, holder and mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS

2,599,- Save 191,-

Buy

In stock > 5 pcs

Order Code: NET007f

5.0 2×

Ajax MotionProtect Curtain White

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

2,623,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX20005

5.0 1×

Ajax MotionProtect Curtain Black

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

2,623,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX20004

3 sizes

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

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 via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: test button and alarm, cover material plastic, operating temperature from -4 to 38 °C, operating humidity from 0 to 85 %, ingress protection IP20, input voltage 3V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS

2,699,-

Buy

On the way > 5 pcs

Expected 09/10/2026

Order Code: XSEN26007

Ajax MotionProtect Plus White - Motion Sesnor

2 colors

5.0 2×

Ajax MotionProtect Plus White

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

2,768,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX8227

Ajax MotionProtect Plus Black - Motion Sesnor

2 colors

5.0 2×

Ajax MotionProtect Plus Black

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

2,768,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX8220

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

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 detectors with long battery life of up to 10 years and a central hub provide instant notification throughout the building, easy installation without cables, expandable with additional detectors, ideal for apartments and houses

2,790,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX26012

2 colors

5.0 4×

Ajax CombiProtect White

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

2,842,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX7170

2 colors

5.0 4×

Ajax CombiProtect Black

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

2,842,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX7167

5.0 1×

GARNI 204 OneCare

Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -40 to 70 °C, humidity measurement from 1 to 99 %, mains + battery-powered, detection reach 100 m, acoustic, visual signals, battery indication and display, features: hours and alarm clock, power adapter and battery included, standalone unit

2,849,-

Buy

In stock > 5 pcs

Order Code: GARNI19014

Eve Water Guard - Water Leak Detector - compatible with Thread - Water Leak Detector

5.0 2×

Eve Water Guard - Water Leak Detector - compatible with Thread

Water Leak Detector - detects Water gas, mains power, sound level: 100dB, compatible with Apple Home, Apple Siri shortcuts and Samsung SmartThings, connect via Bluetooth, standalone functional unit, app with English language support for iOS

Add AlzaPlus+ and save instantly 2,351,-

2,939,- Save 60,-

Buy

On the way 2 pcs

Expected 30/09/2026

Order Code: Eve22_001

SAFE Motion Cam (PhOD), white

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 movement of animals in the guarded area up to a weight of 18 kg and a height of 50 cm, Battery life for up to 4 years, Colour white

3,099,- New 3,299,-

Buy

Unsealed - in stock 1 pcs

Order Code: SAFEH26001

Netatmo Smart Indoor Air Quality Monitor - Air Quality Meter

3.8 46×

Netatmo Smart Indoor Air Quality Monitor

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 to 50 °C with accuracy 0.3 °C, humidity measurement with accuracy 3 %, mains power supply, visual signals, cover material metal, operating temperature from 0 to 50 °C,, ingress protection IP20, input voltage 5 V, power cable included, standalone unit, app language: English, compatible with Android and iOS

3,199,-

Buy

In stock > 5 pcs

Order Code: NET001e

4.7 3×

Somfy Smoke sensor for TaHoma control units white

Smoke Detector - battery-powered , signal volume 85 dB, ingress protection IP20, input voltage 9 V, compatible with TaHoma, standalone unit, compatible with Android and Windows

3,199,-

Buy

In stock > 5 pcs

Order Code: SOMF22_01

Hütermann Pocket radiation meter - dosimeter

Detector - pocket-sized, digital radiation alarm, a nuclear accident alert, an atomic explosion, increased radioactivity, sound and vibration alarm, TFT display, Geiger-Müller sensor, time-lapse function, USB power supply, personal monitor, sensitivity 0.01 µSv/h, measuring range 0,08- 999 µSv/h, USB cable included

3,249,- New 3,459,-

Buy

Unsealed - in stock 1 pcs

Order Code: EMPlist0125

SAFE Motion Cam (PhOD), white

3,299,-

Buy

In stock > 5 pcs

Order Code: SAFEH26001

Somfy Interior motion sensor for Tahoma control unit

Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with TaHoma, range: lighting, security and windows, doors, gates, power supply: Battery-Powered,

3,299,-

Buy

In stock 1 pcs

Order Code: SOMF22_02

Hütermann Pocket radiation meter - dosimeter

3,459,-

Buy

In stock 1 pcs at the supplier's

Order Code: EMPlist0125

SAFE SET FIRE BASIC PLUS - 1x SAFE50HUB-WRF, 3x SAFE10Y30-RF

Security Kit - includes 1x central unit (SAFE50HUB-WRF) and 3 x fire detectors (SAFE10Y30-RF), The set offers extended smoke and fire protection for the home, Wirelessly connected detectors with long battery life of up to 10 years and a central hub provide instant notification throughout the building, easy installation without cables, expandable with additional detectors, ideal for apartments and houses

3,490,-

Buy

In stock > 5 pcs at the supplier's

Order Code: AJAX26013

2 colors

Homematic IP with brightness sensor, outdoor, white

Motion Sesnor , connect through Radio frequency, closed system with detection motion and Lights compatible with Manufacturer app, range: lighting and security, application in English, Czech and German, power supply: Power plug,

3,490,-

Buy

In stock > 5 pcs at the supplier's

Order Code: Home24001

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