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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 CN05A marked at 179 Kč incl. VAT. Is this what you’re looking for?
Smoke Detectors & Fire Alarms Smoke & Fire Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Vibration Detectors Vibration Smart Home Sensors & Detectors Smart Cable Detectors Power Line Metal Detectors Metal Smart Air Quality Meters Smart Air Quality Meters Accessories for Detectors and Sensors Accessories All detectors
 
353 Results
Airthings Wave plus - air quality, radon, humidity, temperature, VOC, CO2 and pressure sensor - Air Quality Meter
4.3 15×
Airthings Wave plus - air quality, radon, humidity, temperature, VOC, CO2 and pressure sensor
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, deviation 30 ppm, temperature measurement with accuracy 0.1 °C, humidity measurement with accuracy 1 %, battery-powered, visual signals, notifications via push notifications, battery indication, cover material plastic, operating temperature from 4 to 40 °C, operating humidity to 85 %, battery and mounting kit included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
5,699,-
From 131,- per month
Buy
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Air21TNG2
Ajax MotionCam HDR (PhOD) Jeweller, white - Motion Sesnor
2 colors
Ajax MotionCam HDR (PhOD) Jeweller, white
Motion Sesnor , closed system with detection motion compatible with Ajax, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
New arrival 5,770,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX26004
Ajax MotionCam HDR (PhOD) Jeweller, black - Motion Sesnor
2 colors
Ajax MotionCam HDR (PhOD) Jeweller, black
Motion Sesnor , closed system with detection motion compatible with Ajax, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
New arrival 5,770,-
Buy
In stock 5 pcs at the supplier's
Order Code: AJAX26003
Honeywell Home Shut-off Valve L5 WiFi 1" and Leak Detector - Humidity Sensor
Honeywell Home Shut-off Valve L5 WiFi 1" and Leak Detector
Humidity Sensor - acoustic signalling, notifications via push notifications, cover material plastic, operating temperature up to 50 °C, input voltage 230 V, sensing cable in the package, independently functional unit, compatible with Android and iOS
6,007,-
From 138,- per month
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HONcid01
Honeywell Home Shut-off Valve L5 WiFi 1" and Leak Detector - Humidity Sensor
Honeywell Home Shut-off Valve L5 WiFi 1" and Leak Detector
Humidity Sensor - acoustic signalling, notifications via push notifications, cover material plastic, operating temperature up to 50 °C, input voltage 230 V, sensing cable in the package, independently functional unit, compatible with Android and iOS
6,007,-
Buy
In stock 2 pcs at the supplier's
Order Code: HONcid01
Ajax WaterStop [1/2] (8EU) white - Remote controlled water shut-off valve (1/2") - Water Leak Detector
Ajax WaterStop [1/2] (8EU) white - Remote controlled water shut-off valve (1/2")
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 1,1 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, standalone functional unit,, app with Czech language support for Android, Windows and iOS
6,194,-
Buy
In stock 4 pcs at the supplier's
Order Code: AJAX23_024
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2") - Water Leak Detector
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2")
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 1100 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, standalone functional unit,, app with Czech language support for Android, Windows and iOS
6,194,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX23_023
Ajax WaterStop [3/4] (8EU) white - Remote controlled water shut-off valve (3/4") - Water Leak Detector
Ajax WaterStop [3/4] (8EU) white - Remote controlled water shut-off valve (3/4")
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 1,1 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, central unit required to function,, app with Czech language support for Android, Windows and iOS
6,989,-
Buy
In stock 2 pcs at the supplier's
Order Code: AJAX23_028
Ajax WaterStop [3/4] (8EU) black - Remote controlled water shut-off valve (3/4") - Water Leak Detector
Ajax WaterStop [3/4] (8EU) black - Remote controlled water shut-off valve (3/4")
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 1100 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, central unit required to function,, app with Czech language support for Android, Windows and iOS
6,989,-
Buy
In stock 3 pcs at the supplier's
Order Code: AJAX23_027
Airthings View Plus - complete air quality monitor - Air Quality Meter
4.6 36×
Airthings View Plus - complete air quality monitor
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), radon, CO₂ (carbon dioxide), dust particles, mains + battery-powered, visual signals, notifications via push notifications, battery indication and display, features: memory, power cable and battery included, standalone unit requires a central hub, app language: English, compatible with Android and iOS
7,399,-
From 170,- per month
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Air22TNG1
Ajax MotionProtect Outdoor (8EU) ASP white (38197) - Motion Sesnor
Ajax MotionProtect Outdoor (8EU) ASP white (38197)
Motion Sesnor , connect through Radio frequency, closed system with detection motion and Human presence compatible with Ajax and Manufacturer app, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
7,796,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX20003
Ajax LifeQuality (8EU) white - Intelligent air quality sensor - Air Quality Meter
Ajax LifeQuality (8EU) white - Intelligent air quality sensor
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, measurement range from 0 to 100 %, temperature measurement from 0 to 50 °C with accuracy 0.2 °C, humidity measurement with accuracy 1,8 %, battery-powered, detection reach 1700 m, visual signals, notifications via push notifications, battery indication, features: automatic scenarios, cover material plastic, operating temperature from 0 to 50 °C,, ingress protection IP50, battery and mounting kit included, requires a central hub, app language: Czech, compatible with Android, Windows and iOS
8,736,-
Buy
In stock 4 pcs at the supplier's
Order Code: AJAX23_022
Ajax LifeQuality (8EU) black - Intelligent air quality sensor - Air Quality Meter
Ajax LifeQuality (8EU) black - Intelligent air quality sensor
Air Quality Meter - detects temperature, humidity, CO₂ (carbon dioxide), measurement range from 400 to 5000 ppm, measurement range from 0 to 100 %, temperature measurement from 0 to 50 °C with accuracy 0.2 °C, humidity measurement with accuracy 1,8 %, battery-powered, detection reach 1700 m, visual signals, notifications via push notifications, battery indication, features: automatic scenarios, cover material plastic, operating temperature from 0 to 50 °C,, ingress protection IP50, battery and mounting kit included, requires a central hub, app language: Czech, compatible with Android, Windows and iOS
8,736,-
Buy
In stock 3 pcs at the supplier's
Order Code: AJAX23_021
Ajax MotionCam Outdoor (PhOD) Jeweller (8EU) ASP white (39293) - Motion Sesnor
Ajax MotionCam Outdoor (PhOD) Jeweller (8EU) ASP white (39293)
Motion Sesnor , connect through Radio frequency, closed system with detection motion and Human presence compatible with Ajax and Manufacturer app, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
10,419,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25013
ONDILO ICO Pool V2, smart water monitor, salt disinfection - Sensor
ONDILO ICO Pool V2, smart water monitor, salt disinfection
Sensor - water quality analysis, minimal maintenance, durable construction
-8 % off new 11,490,- New 12,499,-
From 264,- per month
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: ONDa24001
ONDILO ICO Pool V2, smart water monitor, Cl/Br disinfection - Sensor
3.0 2×
ONDILO ICO Pool V2, smart water monitor, Cl/Br disinfection
Sensor - water quality analysis, minimal maintenance, durable construction
11,499,-
From 264,- per month
Buy
On the way 2 pcs
Expected 30/04/2026
Order Code: ONDa24002
AVATTO Zigbee Water Sensor - Sensor
AVATTO Zigbee Water Sensor
Sensor - ZigBee connection (ZigBee gateway required), compatible with Tuya/Smart Life, water leak detection (probe), in-app notifications (push notifications), local alarm, history of alarm records, smart automation/scenes (intelligent linkage), low consumption, power supply CR2032 (DC 3 V), battery life > 1 year, Low battery indication, 2.4 GHz transmission, operating temperature -10 to +55 °C, dimensions Ø 59,5 × 17 mm
Price has not been set
Currently Unavailable
Order Code: AVT060a
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Cheap detectors

Smoke Detectors & Fire Alarms Smoke & Fire Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Vibration Detectors Vibration Smart Home Sensors & Detectors Smart Cable Detectors Power Line Metal Detectors Metal Smart Air Quality Meters Smart Air Quality Meters Accessories for Detectors and Sensors Accessories All detectors
 

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