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Best sellers, best detectors

We also think that you deserve the best. That’s why on this page, we ranked detectors from the most sold to the least sold. You have 394 products to choose from. Customers have the most interest in EMOS GoSmart Carbon Monoxide Detector TCS0101W, Wi-Fi, which you can buy for 829 Kč incl. VAT. If you’re intrested in detectors in terms of the highest reviews, then look at the detectors reviews and tests category.
All detectors
All from 394
Shelly Gen4 Flood, flood sensor, Bluetooth - Water Leak Detector
Shelly Gen4 Flood, flood sensor, Bluetooth
899,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects Humidity and Water gas, battery-powered, range: 2 m, sound level: 50dB, compatible with Apple Home, Google Home, Manufacturer app and Home Assistant,...
Added to cart
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X-Sense XS01 Standalone Smoke Detector - Smoke Detector
X-Sense XS01 Standalone Smoke Detector
New arrival 449,-
In stock > 10 pcs
4 variants
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 382,-
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...
Added to cart
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SONOFF SNZB-05P Zigbee Water Leak Sensor - Water Leak Detector
SONOFF SNZB-05P Zigbee Water Leak Sensor
399,-
In stock > 10 pcs
2 colors
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...
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
Discounted -16 % 1,249,- 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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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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X-Sense XS01-WX Wi-Fi Smoke Detector - Smoke Detector
X-Sense XS01-WX Wi-Fi Smoke Detector
New arrival 1,199,-
In stock > 5 pcs at the supplier's
4 variants
Add AlzaPlus+ and save instantly 959,-
Smoke Detector - battery-powered , reaction time 1 s, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against...
Added to cart
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SONOFF SNZB-03P Zigbee Motion Sensor - Motion Sesnor
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:...
Added to cart
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X-Sense FS121 (12+1) Set of 12 XS01-M Wireless Smoke Detectors with SB550 Central Unit - Smoke Detector
X-Sense FS121 (12+1) Set of 12 XS01-M Wireless Smoke Detectors with SB550 Central Unit
New arrival 6,999,-
From 141,- per month
In stock 4 pcs
3 sizes
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 5,949,-
Smoke Detector - temperature measurement from 4 to 38 °C, humidity measurement, battery-powered , detection reach 500 m, reaction time 1 s, acoustic, visual signals, notifications...
Added to cart
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Airthings Corentium Home (224 B/m3) - digital radon detector - Air Quality Meter
Airthings Corentium Home (224 B/m3) - digital radon detector
4,217,-
From 100,- per month
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Air Quality Meter - detects radon, battery-powered, display, features: memory, cover material plastic, operating temperature from 4 to 40 °C, battery included, standalone unit
Added to cart
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Elektrobock LM-218B - Gas Leak Detector
Elektrobock LM-218B
449,-
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,...
Added to cart
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Kidde 10LLDCO CO Detector (Moisture Resistant) - Gas Leak Detector
Kidde 10LLDCO CO Detector (Moisture Resistant)
Discounted -9 % 1,379,- 1,529,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 1,241,-
Gas Leak Detector - detects CO (carbon monoxide), signal volume 85 dB, standalone unit
Added to cart
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Secutek CO detector VIP-910Q - Gas Leak Detector
Secutek CO detector VIP-910Q
299,-
In stock > 10 pcs at the supplier's
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, operating temperature from -10 to 40 °C, operating humidity from 30 to 90...
Added to cart
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Somfy Smoke sensor for TaHoma control units white - Smoke Detector
Somfy Smoke sensor for TaHoma control units white
3,199,-
From 147,- per month
On the way > 5 pcs
Expected 14/09/2026
Smoke Detector - battery-powered , signal volume 85 dB, ingress protection IP20, input voltage 9 V, compatible with TaHoma, standalone unit, compatible with Android and Windows
Added to cart
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Elektrobock LM-107A Photoelectric Smoke Detector, 10 years Warranty - Smoke Detector
Elektrobock LM-107A Photoelectric Smoke Detector, 10 years Warranty
399,-
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...
Added to cart
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AQARA Presence Sensor FP2 - Motion Sesnor
AQARA Presence Sensor FP2
2,099,-
From 87,- per month
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Add AlzaPlus+ and save instantly 1,889,-
Motion Sesnor , connect through WiFi 2,4 GHz and Bluetooth, closed system with detection motion and Lights compatible with Apple Home, Google Home, IFTTT and Aqara Home, range:...
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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FireAngel ST 622 Fire and Smoke Detector - Smoke Detector
FireAngel ST 622 Fire and Smoke Detector
Discounted -10 % 629,- 699,-
In stock > 5 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, features: test button and temporary shutdown, operating temperature from 4 to 38 °C,...
Added to cart
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Netatmo Smart Smoke Alarm - Smoke Detector
Netatmo Smart Smoke Alarm
3,594,-
From 166,- per month
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, holder and mounting kit...
Added to cart
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Fireman fire alarm and smoke detector JB-S01 - Smoke Detector
Fireman fire alarm and smoke detector JB-S01
197,-
In stock > 10 pcs at the supplier's
Smoke Detector - battery-powered , acoustic signals, signal volume 90 dB, features: test button, operating temperature from 0 to 40 °C, operating humidity from 30 to 90 %, battery...
Added to cart
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Philips Hue Outdoor Motion Sensor - Motion Sesnor
Philips Hue Outdoor Motion Sensor
1,549,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Buy with code ALZADNY20 1,239,- The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získejte slevu 20 % s kódem ALZADNY20. Klikněte a kód se uplatní automaticky.
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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IMMAX NEO Smart PIR sensor 2in1 Zigbee 3.0 - Motion Sesnor
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...
Added to cart
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Kidde 7DCO CO Detector with Alarm (Gas Leak Sensor) - Gas Leak Detector
Kidde 7DCO CO Detector with Alarm (Gas Leak Sensor)
1,099,-
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
- +
Netatmo Smart Indoor Air Quality Monitor - Air Quality Meter
Netatmo Smart Indoor Air Quality Monitor
3,199,-
From 147,- per month
In stock 1 pcs
Air Quality Meter - detects temperature, humidity, noise, measurement range from 0 to 5000 ppm, deviation 50 ppm, gas detection sensitivity 50 ppm, temperature measurement from 0...
Added to cart
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Multifunctional digital CO detector FireAngel FA3322 with LCD display - Gas Leak Detector
Multifunctional digital CO detector FireAngel FA3322 with LCD display
1,369,-
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, battery indication, features alarm, cover material plastic, operating...
Added to cart
- +
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