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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 Elektrobock CN20 marked at 6.49 € incl. VAT. Is this what you’re looking for?
All from 325
Ajax GlassProtect (8EU) ASP black - Vibration Detector
Ajax GlassProtect (8EU) ASP black
70.28 €
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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Smoot Air Air Quality Monitor - Air Quality Meter
Smoot Air Air Quality Monitor
70.87 €
In stock 3 pcs at the supplier's
Air Quality Meter - detects temperature, humidity, dust particles, mains power supply, notifications via push notifications, battery indication and display, cover material plastic,...
Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor - Air Quality Meter
Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor
-12 % off new 70.90 € New 80.90 €
As good as new - in stock 1 pcs
Air Quality Meter - detects temperature, humidity, TVOC (volatile organic compounds), temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %,...
Airbi CO2AIR digital carbon dioxide meter - Detector
Airbi CO2AIR digital carbon dioxide meter
-9 % off new 73.90 € New 81.90 €
Unsealed - in stock 1 pcs
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
Ajax DoorProtect Plus White - Door and Window Sensor
Ajax DoorProtect Plus White
-5 % off new 74.90 € New 79.46 €
Unsealed - in stock 1 pcs
2 colors
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, deviation angle adjustment and protection against sabotage, range of 1000m, central unit...
Ajax DoorProtect Plus Black - Door and Window Sensor
Ajax DoorProtect Plus Black
74.90 €
In stock > 5 pcs at the supplier's
2 colors
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, deviation angle adjustment and protection against sabotage, range of 1000m, central unit...
AQARA Presence Sensor FP2 - Motion Sesnor
AQARA Presence Sensor FP2
-10 % off new 75.90 € New 84.89 €
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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:...
PIR motion detector - for 55 mm frame, indoor, anthracite - HmIP-SMI55-A - Motion Sesnor
PIR motion detector - for 55 mm frame, indoor, anthracite - HmIP-SMI55-A
76.73 €
Currently Unavailable
Motion Sesnor , connect through Radio frequency, closed system with detection motion, range: lighting, security and home control, application in English, Czech and German, power...
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Ajax MotionProtect White - Motion Sesnor
Ajax MotionProtect White
-12 % off new 77.90 € New 88.60 €
Unsealed - in stock 1 pcs
Motion Sesnor , connect through Radio frequency with detection motion compatible with Ajax, range: security, application in English and Czech, power supply: Battery-Powered,
FIBARO Flood Sensor - Water Leak Detector
FIBARO Flood Sensor
-10 % off new 77.90 € New 86.90 €
Unsealed - in stock 1 pcs
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...
FIBARO Motion Sensor - Motion Sesnor
FIBARO Motion Sensor
77.90 €
In stock 3 pcs
4 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth with detection motion, Light and temperature, range: security, application in English, Czech, German and Slovak, power...
Siemens Connected Home water leak detector SCH040ZB, ZigBee - Water Leak Detector
Siemens Connected Home water leak detector SCH040ZB, ZigBee
79.26 €
In stock 3 pcs at the supplier's
Water Leak Detector - detects water gas, battery-powered, reaction time: 2s, sound level: 60dB, compatible with Connected Home, battery indication, central unit required to...
Ajax DoorProtect Plus White - Door and Window Sensor
Ajax DoorProtect Plus White
79.46 €
Currently Unavailable
2 colors
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, deviation angle adjustment and protection against sabotage, range of 1000m, central unit...
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Nedis WIFISA20CBK - Air Quality Meter
Nedis WIFISA20CBK
79.90 €
In stock 1 pcs at the supplier's
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), mains power supply, acoustic, visual signals, notifications via push notifications, battery indication and...
Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor - Air Quality Meter
Airthings Wave mini - air quality, humidity, temperature and air chemicals sensor
80.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects temperature, humidity, TVOC (volatile organic compounds), temperature measurement with accuracy 1 °C, humidity measurement with accuracy 3 %,...
EVOLVEO wireless outdoor siren for Alarmex / Sonix - Siren
EVOLVEO wireless outdoor siren for Alarmex / Sonix
81.90 €
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Siren - closed system, area of use: security, power supply: Power plug
Airbi CO2AIR digital carbon dioxide meter - Detector
Airbi CO2AIR digital carbon dioxide meter
81.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Detector - CO₂ (carbon dioxide) detection, measurement range from 400 to 2400 ppm, mains + battery power, reaction time 6 s, display, independently functional unit
QINGPING CO2 & Temperature & RH Monitor - Air Quality Meter
QINGPING CO2 & Temperature & RH Monitor
83.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy with code ALZADNI20 67.12 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky.
Air Quality Meter - detects gas, temperature, humidity, measurement range from 400 to 9999 ppm, temperature measurement from -20 to 50 °C with accuracy 0.5 °C, humidity measurement...
AQARA Presence Sensor FP2 - Motion Sesnor
AQARA Presence Sensor FP2
84.89 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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:...
Nice battery operated motion sensor - Motion Sesnor
Nice battery operated motion sensor
85.90 €
Currently Unavailable
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion compatible with Manufacturer app, range: lighting, security and home control, application in...
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FIBARO Flood Sensor - Water Leak Detector
FIBARO Flood Sensor
86.90 €
In stock 5 pcs
4 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
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...
Homematic IP Tilt and vibration sensor - Sensor
Homematic IP Tilt and vibration sensor
87.64 €
Currently Unavailable
Sensor - tilt and vibration sensor, closed system, central unit operation, Android OS + iOS, mobile notifications
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Homematic IP PIR motion detector with brightness sensor - outdoor, anthracite - HmIP-SMO-A-2 - Motion Sesnor
Homematic IP PIR motion detector with brightness sensor - outdoor, anthracite - HmIP-SMO-A-2
87.64 €
Currently Unavailable
Buy with code ALZADNI5 83.26 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 5 % s kódom ALZADNI5. Kliknite a kód sa uplatní automaticky.
Motion Sesnor , closed system with detection motion, range: security, power supply: Battery-Powered,
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Homematic IP PIR motion detector with brightness sensor - outdoor - HmIP-SMO-2 - Motion Sesnor
Homematic IP PIR motion detector with brightness sensor - outdoor - HmIP-SMO-2
87.64 €
Currently Unavailable
Buy with code ALZADNI5 83.26 € The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 5 % s kódom ALZADNI5. Kliknite a kód sa uplatní automaticky.
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:...
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