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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 CN11 Mini marked at 7.19 € incl. VAT. Is this what you’re looking for?
All from 350
SAFE HOME SAFE 10Y30-PRO - Smoke Detector
SAFE HOME SAFE 10Y30-PRO
18.90 €
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 17.01 €
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...
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SONOFF Zigbee Human Presence Sensor - Motion Sesnor
SONOFF Zigbee Human Presence Sensor
18.90 €
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,
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TP-Link Tapo T300, Smart water leak sensor - Water Leak Detector
TP-Link Tapo T300, Smart water leak sensor
Great price 18.90 € Save 1 €
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...
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Sonoff MS01 Smart Soil Moisture Sensor - Sensor
Sonoff MS01 Smart Soil Moisture Sensor
18.90 €
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,...
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iGET SECURITY EP10 - wireless vibration sensor for iGET M5-4G alarm - Detector
iGET SECURITY EP10 - wireless vibration sensor for iGET M5-4G alarm
18.90 €
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Detector vibration detection sensor for iGET SECURITY M5 alarm. It is used for windows, showcases, valuable things like TV, antiques, etc. As soon as a minor shock occurs, the...
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Elektrobock LM-107A Photoelectric Smoke Detector, 10 years Warranty - Smoke Detector
Elektrobock LM-107A Photoelectric Smoke Detector, 10 years Warranty
18.90 €
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , detection reach 12 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: alarm, cover material plastic, operating...
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IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0 - Motion Sesnor
IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0
18.90 €
In stock > 10 pcs at the supplier's
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...
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X-Sense XS01 Standalone Smoke Detector - Smoke Detector
X-Sense XS01 Standalone Smoke Detector
New arrival 18.91 €
In stock > 10 pcs
4 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 16.07 €
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...
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EMOS PIR senzor (pohybové čidlo), IP20, 500 W, bílý - Motion Sesnor
EMOS PIR senzor (pohybové čidlo), IP20, 500 W, bílý
New arrival 19.24 €
Ordered on request
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
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ERMENRICH Gas detector NG20 84091 - Gas Leak Detector
ERMENRICH Gas detector NG20 84091
19.24 €
In stock > 10 pcs at the supplier's
Gas Leak Detector - detects CO (carbon monoxide), propane-butane, measurement range from 500 to 2000 ppm, battery-powered, acoustic, visual signals, standalone unit
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Elektrobock LM-218B - Gas Leak Detector
Elektrobock LM-218B
19.90 €
In stock > 10 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,...
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EZVIZ Water leak sensor T10C - Water Leak Detector
EZVIZ Water leak sensor T10C
19.90 €
In stock 2 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...
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EVOLVEO Alarmex Pro (ACSALMPIR) wireless PIR motion sensor - Motion Sesnor
EVOLVEO Alarmex Pro (ACSALMPIR) wireless PIR motion sensor
19.90 €
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through GSM, closed system with detection motion, range: security, power supply: Battery-Powered,
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iQtech SmartLife WL02, Wi-Fi flood sensor - Water Leak Detector
iQtech SmartLife WL02, Wi-Fi flood sensor
19.90 €
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects Water gas, battery-powered, compatible with Tuya and Manufacturer app, connect via WiFi 2,4 GHz, standalone functional unit,, app with Czech language...
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EZVIZ T3C smart button - Smart Wireless Switch
EZVIZ T3C smart button
19.90 €
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smart Wireless Switch - compatible with EZVIZ, control via app on Android and iOS,connect via , application in Czech and English
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EMOS GoSmart PIR sensor (motion sensor) IP20, 60°, ZigBee - Motion Sesnor
EMOS GoSmart PIR sensor (motion sensor) IP20, 60°, ZigBee
Amazing Deal 20.07 € Save 8.83 €
Currently Unavailable
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Lidl Home, Smartlife and EMOS GoSmart, range: lighting and security,...
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EMOS Microwave sensor (motion sensor) IP20, 1200 W, 360°, built-in - Motion Sesnor
EMOS Microwave sensor (motion sensor) IP20, 1200 W, 360°, built-in
Great price 20.07 €
Ordered on request
Motion Sesnor with detection motion, range: lighting, power supply: Power plug,
Added to cart
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Solight Wireless motion detector/gong - Detector
Solight Wireless motion detector/gong
20.11 €
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
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,...
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Smoot ZigBee Motion - Motion Sesnor
Smoot ZigBee Motion
20.53 €
In stock 1 pcs at the supplier's
Motion Sesnor , connect through WiFi 2,4 GHz and WiFi 5 GHz, open system with detection motion compatible with Apple Siri shortcuts and Tuya, range: lighting and security,...
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Smoot Air Motion - Motion Sesnor
Smoot Air Motion
20.53 €
In stock 4 pcs at the supplier's
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Apple Siri shortcuts and Tuya, range: lighting and security, application in Czech,...
Added to cart
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Bentech Gasman LCD standalone fire alarm and gas leak detector - Gas Leak Detector
Bentech Gasman LCD standalone fire alarm and gas leak detector
20.53 €
In stock > 10 pcs at the supplier's
Gas Leak Detector - detects natural gas, propane-butane, mains power supply, detection reach 30 m, reaction time 20 s, acoustic signals, battery indication, features alarm, cover...
Added to cart
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Tellur WiFi Smart Motion Sensor, PIR, White - Motion Sesnor
Tellur WiFi Smart Motion Sensor, PIR, White
20.53 €
In stock > 5 pcs at the supplier's
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Manufacturer app, range: security, application in English, power supply:...
Added to cart
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Alecto COA3910 - Gas Leak Detector
Alecto COA3910
20.89 €
In stock > 5 pcs at the supplier's
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, battery indication, features alarm, cover material plastic, input voltage...
Added to cart
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AQARA Vibration Sensor T1 (VB-S01D) - Vibration Detector
AQARA Vibration Sensor T1 (VB-S01D)
20.90 €
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 18.81 €
Vibration Detector - detects Opening windows and doors, Fall and vibration gas, battery-powered, reaction time: 1s, compatible with Apple Home and Manufacturer app, battery...
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