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 BOSCH AKU Filio gas cylinder level indicator 0.603.684.000 (2 × AAA) marked at 179 Kč incl. VAT. Is this what you’re looking for?
All from 406
SONOFF SNZB-05P Zigbee Water Leak Sensor
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects Water gas, battery-powered, range: 130 m, compatible with Samsung SmartThings, IFTTT and eWeLink, central unit required to function,, app with Czech...
MOES Water Leakage Detector, Zigbee
399,-
Currently Unavailable
Water Leak Detector - detects Water gas, battery-powered, compatible with Tuya and MOES, battery indication, central unit required to function,, app with Czech language support,...
FireAngel SB5 fire and smoke detector
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , acoustic, visual signals, signal volume 85 dB, features: test button and temporary shutdown, operating temperature from 0 to 40 °C, operating...
KIDDE 29HD Smoke Detector
399,-
Currently Unavailable
Smoke Detector - acoustic, visual signals, signal volume 85 dB, standalone unit
iGET SECURITY P1v2 - wireless PIR motion detector
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor accessories for iGET SECURITY M3B and M2B alarm system - Wireless PIR motion detector for monitoring movement in the room
iGET SECURITY P2 - wired PIR motion detector for iGET SECURITY M3B and M2B
399,-
In stock > 10 pcs at the supplier's
Motion Sesnor , connect through Radio frequency, open system with detection motion, range: security, power supply: Power plug,
SwitchBot Contact Sensor
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Door and Window Sensor - wireless, compatible with Apple Siri shortcuts and Samsung SmartThings, connect via WiFi 2,4 GHz, battery indication, range of 5m, separately functional...
Elektrobock LM-107A Photoelectric Smoke Detector, 10 years Warranty
399,-
Currently Unavailable
Smoke Detector - battery-powered , detection reach 12 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: alarm, cover material plastic, operating...
EZVIZ Water leak sensor T10C
-12 % off new
409,-
New 469,-
As good as new - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 200 m, compatible with Google Home and EZVIZ, connect via WiFi 2,4 GHz, battery indication, central...
Solight Wireless motion detector/gong
409,-
Currently Unavailable
Detector volume 65 - 80 dB(A), signal range max. 40m without obstacles, operational range of motion detection 0-8m, angle of view 15° vertically, angle of view 100° horizontally,...
BOT Zigbee ZMR1 Smart Motion Sensor
409,-
In stock 4 pcs at the supplier's
Add AlzaPlus+ and save instantly
368,-
Motion Sesnor , open system with detection motion compatible with Tuya, range: security, application in English, Czech and Slovak, power supply: USB,
AQARA Water Leak Sensor T1
-13 % off new
459,-
New 529,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy with code
ALZADNY10
413,-
The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart.
Získejte slevu 10 % s kódem ALZADNY10. Klikněte a kód se uplatní automaticky.
Water Leak Detector - detects water gas, battery-powered, compatible with Apple Home, Google Home, Samsung SmartThings, IFTTT and Aqara Home, connect via Bluetooth, battery...
SONOFF SNZB-03P Zigbee Motion Sensor
429,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , open system with detection motion compatible with Samsung SmartThings, IFTTT and eWeLink, range: lighting, application in English and Czech, power supply:...
TP-Link Tapo T300, Smart water leak sensor
429,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects Humidity and Water gas, battery-powered, sound level: 90dB, compatible with Google Home and Manufacturer app, connection via radio waves, central unit...
EMOS Microwave sensor (motion sensor) IP20, 2000 W, 360°, mounted
429,-
In stock > 10 pcs at the supplier's
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
SAFE HOME SAFE 10Y30-PRO
Discounted -12 %
439,-
499,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , acoustic signals, signal volume 85 dB, battery indication, operating temperature from -10 to 55 °C, operating humidity up to 95 %, input voltage...
SONOFF Zigbee Human Presence Sensor
439,-
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through Radio frequency, open system with detection motion and Human presence, range: lighting, power supply: Power plug,
Sonoff MS01 Smart Soil Moisture Sensor
439,-
On the way > 5 pcs
Expected 06/10/2026
Sensor - humidity sensor, waterproof (IP55), compatible with Sonoff TH Origin/Elite sensor, cable 50 cm long, support for voice assistants, operating temperature 0 to 60 °C,...
SwitchBot Motion Sensor
444,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion, range: security, power supply: Battery-Powered,
IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0
449,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , open system with detection motion and Lights compatible with Apple Siri shortcuts, Tuya, Lidl Home, Smartlife, Nedis SmartLife, ETA SMART, Tesla Smart and Immax NEO...
Smoot Air Leak Pro
449,-
In stock > 10 pcs at the supplier's
Water Leak Detector - detects Water gas, battery-powered, compatible with Apple Siri shortcuts and Tuya, connect via WiFi 2,4 GHz, battery indication, standalone functional unit,,...
X-Sense XS01 Standalone Smoke Detector
449,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , detection reach 200 m, reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication...
Elektrobock LM-218B
449,-
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), measurement range from 30 to 550 ppm, deviation 3 ppm, battery-powered, acoustic signals, signal volume 85 dB, battery indication,...
SONOFF Zigbee Human Presence Sensor
449,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through Radio frequency, open system with detection motion and Human presence, range: lighting, power supply: Power plug,
No longer sold
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