Refresh the page
HomeCatalogShopping Cart
Orders
Menu

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 SONOFF WLDC200 Water Leak Detection Cable marked at 2,850 Ft incl. VAT. Is this what you’re looking for?
All from 275
SAFE Door Guard Plus, white - Sensor
SAFE Door Guard Plus, white
19,290 Ft
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - wireless magnetic open, shock and tilt detector for window and door security Powered by a replaceable battery that allows continuous operation for up to 4 years, white...
Added to cart
- +
WiZ Contact sensor 2pack - Door and Window Sensor
WiZ Contact sensor 2pack
19,580 Ft
Currently Unavailable
Door and Window Sensor - wireless, compatible with Google Home and Manufacturer app, connect via WiFi 2,4 GHz, battery indication, night orientation light and adjustable...
View
SAFE Glass Guard, white - Sensor
SAFE Glass Guard, white
19,790 Ft
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - wireless glass breakage detector for security of glazed surfaces equipped with two NC inputs, Multi-factor glass breakage detection with the possibility of remote...
Added to cart
- +
AQARA Presence Sensor FP1E (PS-S03D), Zigbee - Motion Sesnor
AQARA Presence Sensor FP1E (PS-S03D), Zigbee
Great price 19,890 Ft
On the way > 5 pcs
Expected 31/08/2026
Motion Sesnor , connect through Radio frequency, open system with detection motion compatible with Aqara Home and Manufacturer app, range: lighting and security, application in...
Added to cart
- +
Philips Hue Motion Sensor - Motion Sesnor
Philips Hue Motion Sensor
Great price 19,890 Ft
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through Bluetooth, open system with detection motion compatible with Apple Home, range: lighting, application in English, Czech, German, Slovak and...
Added to cart
- +
BOSCH FILIO AKU Gas Cylinder Level Indicator 0.603.684.000 (2 × AAA) - Gas Leak Detector
BOSCH FILIO AKU Gas Cylinder Level Indicator 0.603.684.000 (2 × AAA)
New arrival 20,590 Ft
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - propane-butane detection, battery powered, 5s response time, audible and visual signalling, battery status indication, alarm function, plastic housing material,...
Added to cart
- +
Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa) - Door and Window Sensor
Eve Door & Window (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
20,880 Ft
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Door and Window Sensor - wireless, compatible with Apple Home, Google Home and Samsung SmartThings, connect via Bluetooth, central unit required, supported OS: Android and iOS,...
Added to cart
- +
EVOLVEO Alarmex Pro ( ACSALMOUS) wireless outdoor light and sound siren - Siren
EVOLVEO Alarmex Pro ( ACSALMOUS) wireless outdoor light and sound siren
20,890 Ft
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Siren - closed system, area of use: security, OS supported: Android and iOS, compatible with Manufacturer app, power supply: Power plug, in Czech and English
Added to cart
- +
Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa) - Motion Sesnor
Eve Motion (Matter - compatible with Apple, Google, SmartThings & Amazon Alexa)
21,090 Ft
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Lights compatible with Apple Home, Google Home and Samsung SmartThings, range: lighting, security...
Added to cart
- +
SAFE Motion Guard, white - Sensor
SAFE Motion Guard, white
21,490 Ft
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - wireless motion detector equipped with dual PIR sensor detecting motion at a distance of up to 12 meters, PET immunity up to a weight of 18 kg and 50 cm height, The...
Added to cart
- +
Ajax DoorProtect White - Door and Window Sensor
Ajax DoorProtect White
21,880 Ft
Currently Unavailable
Door and Window Sensor - wireless, compatible with Ajax, connect via Radio frequency, range of 1200m, central unit required, supported OS: Android, Windows and iOS, application in...
View
SAFE Wireless flammable and explosive gas detector 5YGAS-RF - Gas Leak Detector
SAFE Wireless flammable and explosive gas detector 5YGAS-RF
21,970 Ft
Currently Unavailable
Gas Leak Detector - detects natural gas, mains power supply, detection reach 1000 m, acoustic, visual signals, signal volume 85 dB, features alarm, cover material plastic,...
View
SAFE FireSafe 10YDCO-RF Wirelessly connectable carbon monoxide (CO) detector - Gas Leak Detector
SAFE FireSafe 10YDCO-RF Wirelessly connectable carbon monoxide (CO) detector
21,980 Ft
Currently Unavailable
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, signal volume 85 dB, features alarm, cover material plastic, operating temperature from...
View
Ajax LeaksProtect White - Water Leak Detector
Ajax LeaksProtect White
22,720 Ft
Currently Unavailable
Water Leak Detector - detects Water gas, battery-powered, range: 1300 m, reaction time: 0,15s, compatible with Ajax, connection via radio waves, protection against sabotage,...
View
Ubiquiti UniFi Protect Sense - Sensor
Ubiquiti UniFi Protect Sense
Great price 22,790 Ft
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - Multisensor, Bluetooth 5.0 BLE, Motion, opening, Temperature, humidity, water
Added to cart
- +
Ajax LeaksProtect Black - Water Leak Detector
Ajax LeaksProtect Black
23,030 Ft
Currently Unavailable
Water Leak Detector - detects Water gas, battery-powered, range: 1300 m, reaction time: 0,15s, compatible with Ajax, connection via radio waves, protection against sabotage,...
View
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi - Sensor
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi
-5 % off new 23,890 Ft New 25,390 Ft
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - precise measurement using ultrasonic technology, suitable for any type of liquid, IP65 resistance, possibility of connection to a smart water valve, Immax NEO PRO app in...
Added to cart
- +
Homematic IP PIR motion detector - for 55 mm frame, indoor - HmIP-SMI55-2 - Motion Sesnor
Homematic IP PIR motion detector - for 55 mm frame, indoor - HmIP-SMI55-2
24,650 Ft
Currently Unavailable
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Google Home and Manufacturer app, range: security, power supply: Battery-Powered,
View
Homematic IP Occupancy Sensor - indoor - HmIP-SPI - Motion Sesnor
Homematic IP Occupancy Sensor - indoor - HmIP-SPI
24,830 Ft
Currently Unavailable
Motion Sesnor with detection motion compatible with Google Home and Manufacturer app, range: lighting, power supply: Battery-Powered,
View
Homematic IP Siren indoor - HmIP-ASIR-2 - Siren
Homematic IP Siren indoor - HmIP-ASIR-2
24,830 Ft
Currently Unavailable
Siren - open system, area of use: security, OS supported: Android and iOS, compatible with Google Home and Homematic IP, power supply: Battery-Powered
View
Shelly Gas, detektor LPG, WiFi - Gas Leak Detector
Shelly Gas, detektor LPG, WiFi
24,830 Ft
Currently Unavailable
Gas Leak Detector -
View
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi - Sensor
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi
25,390 Ft
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - precise measurement using ultrasonic technology, suitable for any type of liquid, IP65 resistance, possibility of connection to a smart water valve, Immax NEO PRO app in...
Added to cart
- +
Nedis ZBDCO11WT - Gas Leak Detector
Nedis ZBDCO11WT
25,890 Ft
Ordered on request
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features alarm,...
Added to cart
- +
SAFE Motion Guard Plus, white - Sensor
SAFE Motion Guard Plus, white
26,490 Ft
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - wireless dual PIR motion detector with microwave sensor detecting motion up to 12 meters, which is able to reliably ignore the movement of animals in the guarded area (PET...
Added to cart
- +
Previous
24 more...
Other

No longer sold

Archive
Chcete doručit do České republiky? Jdi na Detektory
Chcete doručiť tovar na Slovensko? Prezrite si Detektory
Für den Versand nach Deutschland, besuchen Sie bitte Detektoren und Sensoren
Für den Versand nach Österreich, besuchen Sie bitte Detektoren und Sensoren

Try our cookies

Alza.cz a. s., Company identification number 27082440, use cookies and other data to ensure the proper functioning of the website and, with your consent, also, among other things, to personalize advertising and the content of our websites. By clicking on the “I understand“ button, you agree to the use of cookies and the transfer of data regarding the behavior on the website for displaying targeted advertising on social networks and advertising networks on other websites.

More information
I understand Detailed settings Reject everything
P-DC1-WEB20