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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 iGET SECURITY P9 - wireless water level detector for iGET SECURITY M3B and M2B marked at 5.89 € incl. VAT. Is this what you’re looking for?
310 Results
Ajax GlassProtect (8EU) ASP white (38109)
Vibration Detector - detects vibration gas, battery-powered, compatible with Ajax and Manufacturer app, connection via radio waves, battery indication, adjustable sensitivity and protection against sabotage, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
69.94 €
Currently Unavailable
Order Code: AJAX25010
Ajax GlassProtect (8EU) ASP black
Vibration Detector - detects vibration gas, battery-powered, compatible with Ajax and Manufacturer app, connection via radio waves, battery indication, adjustable sensitivity and protection against sabotage, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
69.94 €
Currently Unavailable
Order Code: AJAX25009
2.8
Smoot Air Air Quality Monitor
Air Quality Meter - detects temperature, humidity, dust particles, mains power supply, notifications via push notifications, battery indication and display, cover material plastic, standalone unit, app language options: Czech and English, compatible with Android and iOS
70.52 €
Buy
In stock 4 pcs at the supplier's
Order Code: SMoot04
PIR motion detector - for 55 mm frame, indoor, anthracite - HmIP-SMI55-A
Motion Sesnor , connect through Radio frequency, closed system with detection motion, range: lighting, security and home control, application in English, Czech and German, power supply: Battery-Powered,
76.35 €
Currently Unavailable
Order Code: Home23_40
4.7 16×
FIBARO Motion Sensor
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 Czech, applications in Czech and English for Android and iOS
77.90 €
Buy
In stock 5 pcs
Order Code: FIBR01b
Siemens Connected Home water leak detector SCH040ZB, ZigBee
Water Leak Detector - detects water gas, battery-powered, reaction time: 2s, sound level: 60dB, compatible with Connected Home, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
78.90 €
Buy
In stock 3 pcs at the supplier's
Order Code: SimS25001
5.0
Ajax DoorProtect Plus White
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, deviation angle adjustment and protection against sabotage, range of 1000m, central unit required, supported OS: Android, Windows and iOS, application in English
79.08 €
Currently Unavailable
Order Code: AJAX9999
5.0
Ajax DoorProtect Plus Black
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, deviation angle adjustment and protection against sabotage, range of 1000m, central unit required, supported OS: Android, Windows and iOS, application in English
79.08 €
Currently Unavailable
Order Code: AJAX9996
4.7 13×
FIBARO Smoke Sensor
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features: alarm, operating temperature from 0 to 55 °C, operating humidity from 0 to 93 %, battery included, standalone unit requires a central hub, app language options: Czech and English
79.17 €
Buy
In stock 2 pcs at the supplier's
Order Code: FIBR01f
4.5
Nedis WIFISA20CBK
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), mains power supply, acoustic, visual signals, notifications via push notifications, battery indication and display, features: hours and date, operating temperature from -10 to 40 °C, power cable and mounting kit included, compatible with Smartlife and Nedis SmartLife, standalone unit, compatible with Android and iOS
79.90 €
Buy
In stock 2 pcs at the supplier's
Order Code: Nedis24065
4.2 12×
Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor
Air Quality Meter - detects temperature, humidity, TVOC (volatile organic compounds), temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %, battery-powered, visual signals, notifications via push notifications, battery indication, operating temperature from 4 to 40 °C, holder and battery included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
80.90 €
Buy
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Air21TNG1
4.5
EVOLVEO wireless outdoor siren for Alarmex / Sonix
Siren - closed system, area of use: security, power supply: Power plug
81.90 €
Buy
Ordered on request
Order Code: RY203f
4.8 18×
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
81.90 €
Buy
On the way > 5 pcs
Expected 20/04/2026
Order Code: Airbi24001
4.2 11×
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
-20 % off new 82.90 € New 104.08 €
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EMOS24070
5.0
QINGPING CO2 & Temperature & RH Monitor
Sensor Monitor for real-time remote monitoring of carbon dioxide levels and temperature and humidity conditions
83.90 €
Currently Unavailable
Order Code: QGP008a
4.2 52×
AQARA Presence Sensor FP2
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: lighting and security, application in English, Czech and Slovak, power supply: Power plug and USB,
84.89 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Aqara23_002
4.1
FIBARO Flood Sensor
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 English language support for Android and iOS
85.90 €
Buy
In stock 4 pcs
Order Code: FIBR01c
5.0
Homematic IP PIR motion detector with brightness sensor - outdoor - HmIP-SMO-2
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion, range: lighting, heating and cooling and security, application in Czech, power supply: Battery-Powered,
Buy with code ALZADNI10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky. 77.97 €
86.63 €
Currently Unavailable
Order Code: Home22_25
Homematic IP Tilt and vibration sensor
Sensor - tilt and vibration sensor, closed system, central unit operation, Android OS + iOS, mobile notifications
87.20 €
Currently Unavailable
Order Code: Home24003
Homematic IP PIR motion detector with brightness sensor - outdoor, anthracite - HmIP-SMO-A-2
Motion Sesnor , closed system with detection motion, range: security, power supply: Battery-Powered,
87.20 €
Currently Unavailable
Order Code: Home22_26
Homematic IP Smart Meter Interface
Sensor - interface for smart meters, closed system, operation via central unit, OS Android + iOS, mobile notifications
-11 % off new 87.90 € New 99.73 €
Buy
Unsealed - in stock 1 pcs
Order Code: Home24005
5.0 12×
Ajax MotionProtect Black
Motion Sensor - Interior, battery powered, input voltage: 3V, reach of 12m, compatible with Ajax, connection via radio waves, protection against sabotage, independently functional unit, application in English for Android and iOS
88.31 €
Buy
In stock 2 pcs
Order Code: AJAX5314
5.0 12×
Ajax MotionProtect White
Motion Sensor - for alarm, Interior, battery powered, input voltage: 3V, reach of 12m, compatible with Ajax, connection via radio waves, protection against sabotage, independently functional unit, application in Czech, applications in Czech and English for Android and iOS
88.31 €
Buy
In stock 3 pcs
Order Code: AJAX5328
5.0
ERMENRICH Gas detector NG40 84092
Gas Leak Detector - measurement range from 0 to 10000 ppm, battery power, acoustic, optical signalling, battery status indication and display, reset and alarm functions, operating temperature from -20 to 50 °C, operating humidity up to 95%, degree of protection IP65, independently functional unit
91.76 €
Buy
In stock > 5 pcs at the supplier's
Order Code: ERMpri09
 

Cheap detectors

Check out products sorted by price starting with the lowest price in the category cheap detectors Find products sorted from the most expensive to the cheapest in the category most expensive detectors Check out products sorted by price starting with the highest price in the category best sellers, best detectors You’ll find products sorted by reviews starting from the highest ranked in detectors reviews
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