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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 RETLUX RSH 310 Smart Water Leak Sensor marked at 159 Kč incl. VAT. Is this what you’re looking for?
All from 379
Ubiquiti UniFi Protect Sense - Sensor
Ubiquiti UniFi Protect Sense
1,459,-
In stock > 5 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
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Combined Detector of CO, Flammable and Explosive Gases SAFE 808COM - Gas Leak Detector
Combined Detector of CO, Flammable and Explosive Gases SAFE 808COM
1,489,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), natural gas, propane-butane, measurement range to 2500 ppm, mains power supply, reaction time 20 s, acoustic, visual signals,...
Added to cart
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IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi - Sensor
IMMAX NEO Smart Ultrasonic Liquid Level Sensor , 5 m, WiFi
1,499,-
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
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Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi - Detector
Shelly Gas, CNG Gas Detector, Alarm: Flashing LED & Acoustic Signal, WiFi
1,529,-
On the way 3 pcs
Expected 10/08/2026
Detector - Shelly GAS is a compact and highly sensitive CNG natural gas detector, bringing additional security for your home and family. Alarm: flashing LED & acoustic signal....
Added to cart
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Kidde 10LLDCO CO Detector (Moisture Resistant) - Gas Leak Detector
Kidde 10LLDCO CO Detector (Moisture Resistant)
1,529,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), signal volume 85 dB, standalone unit
Added to cart
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Philips Hue Outdoor Motion Sensor - Motion Sesnor
Philips Hue Outdoor Motion Sensor
1,539,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , closed system with detection motion compatible with Apple Home and Philips Hue, power supply: Battery-Powered,
Added to cart
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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
1,560,-
In stock > 5 pcs at the supplier's
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,
Added to cart
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Homematic IP Smoke detector HmIP-SWSD-2 - Smoke Detector
Homematic IP Smoke detector HmIP-SWSD-2
1,569,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , detection reach 40 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: test button, cover material plastic, operating...
Added to cart
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Homematic IP Occupancy Sensor - indoor - HmIP-SPI - Motion Sesnor
Homematic IP Occupancy Sensor - indoor - HmIP-SPI
1,571,-
In stock > 5 pcs at the supplier's
Motion Sesnor with detection motion compatible with Google Home and Manufacturer app, range: lighting, power supply: Battery-Powered,
Added to cart
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Homematic IP Siren indoor - HmIP-ASIR-2 - Siren
Homematic IP Siren indoor - HmIP-ASIR-2
1,571,-
In stock > 5 pcs at the supplier's
Siren - open system, area of use: security, OS supported: Android and iOS, compatible with Google Home and Homematic IP, power supply: Battery-Powered
Added to cart
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Airbi CO2AIR digital carbon dioxide meter - Detector
Airbi CO2AIR digital carbon dioxide meter
-18 % off new 1,639,- New 1,999,-
Unsealed - in stock 2 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
Added to cart
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Somfy Smoke Detector One+ - Smoke Detector
Somfy Smoke Detector One+
-8 % off new 1,639,- New 1,799,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , detection reach 200 m, notifications via SMS, email, push notifications, signal volume 85 dB, compatible with TaHoma, requires a central hub,...
Added to cart
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Ajax GlassProtect (8EU) ASP black - Vibration Detector
Ajax GlassProtect (8EU) ASP black
1,676,-
In stock > 5 pcs at the supplier's
Vibration Detector - detects vibration gas, battery-powered, compatible with Ajax and Manufacturer app, connection via radio waves, battery indication, adjustable sensitivity and...
Added to cart
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Smoot Air Air Quality Monitor - Air Quality Meter
Smoot Air Air Quality Monitor
1,690,-
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,...
Added to cart
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FIBARO Motion Sensor - Motion Sesnor
FIBARO Motion Sensor
1,699,-
In stock 2 pcs
3 variants
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...
Added to cart
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GARNI 210T OneCare - Air Quality Meter
GARNI 210T OneCare
-30 % off new 1,739,- New 2,489,-
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -10 to 50 °C with accuracy 0.8 °C, humidity measurement with accuracy 5 %, mains +...
Added to cart
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QINGPING CO2 & Temperature & RH Monitor - Air Quality Meter
QINGPING CO2 & Temperature & RH Monitor
-12 % off new 1,759,- New 1,999,-
Unsealed - in stock 2 pcs
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...
Added to cart
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iNELS RFSF-100 Flood detector - Water Leak Detector
iNELS RFSF-100 Flood detector
1,784,-
In stock > 5 pcs at the supplier's
Water Leak Detector - detects water gas, battery-powered, range: 160 m, reaction time: 2s, compatible with Manufacturer app, connection via radio waves, battery indication, central...
Added to cart
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Somfy Smoke Detector One+ - Smoke Detector
Somfy Smoke Detector One+
1,799,-
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - battery-powered , detection reach 200 m, notifications via SMS, email, push notifications, signal volume 85 dB, compatible with TaHoma, requires a central hub,...
Added to cart
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EVOLVEO wireless outdoor siren for Alarmex / Sonix - Siren
EVOLVEO wireless outdoor siren for Alarmex / Sonix
-8 % off new 1,829,- New 1,989,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Siren - closed system, area of use: security, power supply: Power plug
Added to cart
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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
1,830,-
In stock > 5 pcs at the supplier's
Motion Sesnor , connect through Radio frequency, closed system with detection motion, range: lighting, security and home control, application in English, Czech and German, power...
Added to cart
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iNELS RFMD-100 Motion detector - Motion Sesnor
iNELS RFMD-100 Motion detector
1,840,-
In stock > 5 pcs at the supplier's
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Manufacturer app, range: lighting, electrical installation and home control,...
Added to cart
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iNELS RFMD-200 Wireless motion detector - Motion Sesnor
iNELS RFMD-200 Wireless motion detector
1,840,-
In stock > 5 pcs at the supplier's
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Manufacturer app, range: lighting, electrical installation and home control,...
Added to cart
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FIBARO Smoke Sensor - Smoke Detector
FIBARO Smoke Sensor
1,889,-
Ordered on request
3 variants
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features:...
Added to cart
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