Try our cookies Alza.cz a. s., Company identification number 27082440, uses cookies to ensure the functionality of the website and with your consent also to personalisage the content of our website. 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.
Alzak icon
Catalogue
Price
-
Availability
Order status
Product type
(51)
(138)
(62)
(13)
(10)
Detection Type
(154)
(59)
(57)
(44)
(42)
Detection element
(72)
(29)
(18)
(14)
(11)
Range
1 m
1,700 m
-
Colour
(324)
(28)
(1)
(2)
(1)
(11)
Newest orders

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 CN05A marked at 179 Kč incl. VAT. Is this what you’re looking for?
370 Results
4.6 13×
FireAngel ST 622 Fire and Smoke Detector
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, operating humidity up to 90 %, standalone unit
699,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH136
3.0
MOES Human Presence Sensor + Light Sensor, Zigbee
Motion Sesnor , connect through WiFi 2,4 GHz, open system with detection motion compatible with Tuya, Smartlife and MOES, range: security, power supply: USB,
-20 % off new 699,- New 879,-
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Moes2507
Kruger&Matz KM2260 Carbon monoxide detector Connect S10 Tuya PN-EN50921
Gas Leak Detector - measurement range from 50 to 300 ppm, battery-powered, detection reach 3 m, acoustic signals, notifications via push notifications, signal volume 85 dB, features test button, cover material plastic, standalone unit
New arrival 699,-
Buy
In stock > 5 pcs at the supplier's
Order Code: WSaaa5735
4.4 67×
EVOLVEO Defender D5
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, signal volume 85 dB, battery indication and display, features test button and self-diagnostics, mounting kit included, standalone unit
719,-
Buy
In stock > 5 pcs
Order Code: RY211
Dahua DHI-HY-GA20A
Gas Leak Detector - mains power supply, detection reach 40 m, reaction time 10 s, acoustic, visual signals, signal volume 70 dB, features test button, self-diagnostics and alarm, cover material plastic, operating temperature from -10 to 55 °C,, ingress protection IP30, input voltage 230 V, mounting kit included, standalone unit
729,-
Buy
In stock 5 pcs at the supplier's
Order Code: DAHUdete006
3.6
Meross Smart Water Leak Sensor Kit
Sensor - water leak sensor, for a safe home, It works 24/7, powered by replaceable CR123A battery (lifetime 18 months), battery indicator, IP67 waterproof, alerts via the app, 60 dB alarm, Meross Hub central unit is required for sensor functionality
729,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Mer24_13
5.0
BOT Smart gas detector WiFi GS4
Gas Leak Detector - mains power supply, detection reach 20 m, acoustic signals, notifications via push notifications, signal volume 90 dB, display, features alarm, cover material plastic, operating temperature to 55 °C, input voltage 230 V, compatible with Tuya and Smartlife, requires a central hub, app language options: Czech and English , compatible with Android and iOS
729,-
Buy
In stock > 5 pcs at the supplier's
Order Code: BOTdet006
Dahua DHI-HY-GC20D-R8
Gas Leak Detector - detects CO (carbon monoxide), measurement range from 50 to 300 ppm, battery-powered, detection reach 40 m, reaction time 10 s, acoustic signals, signal volume 85 dB, battery indication and display, features test button and alarm, cover material plastic, operating temperature from -10 to 55 °C,, ingress protection IP30, input voltage 3V, battery and mounting kit included, standalone unit
749,-
Buy
In stock 2 pcs at the supplier's
Order Code: DAHUdete009
EVOLVEO Wireless 360° PIR Ceiling Motion Sensor for Sonix
Motion Sensor - for alarm, Interior, battery powered, reach of 80m, connection via radio waves, battery indication, independently functional unit, application in Czech, applications in Czech and English
749,-
Currently Unavailable
Order Code: EVolv08
AQARA Multi-State Sensor P100 Kit (VB-S03D), grey
Vibration Detector - detects Opening windows and doors, vibration and Angle gas, battery-powered, compatible with Apple Home, Google Home, Samsung SmartThings and Aqara Home, connection via radio waves, adjustable sensitivity, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
New arrival 759,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Aqara26001
AQARA Multi-State Sensor P100 Kit (VB-S03DW), white
Vibration Detector - detects Opening windows and doors, vibration and Angle gas, battery-powered, compatible with Apple Home, Google Home and Aqara Home, connection via radio waves, adjustable sensitivity, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
New arrival 759,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Aqara26002
3.9 27×
EVOLVEO WiFi SMOKE, smart smoke detector
Smoke Detector - battery-powered , detection reach 60 m, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: test button and temporary shutdown, operating temperature from -15 to 55 °C, operating humidity up to 95 %, battery and mounting kit included, compatible with Smartlife, standalone unit, app language options: Czech and English , compatible with Android and iOS
Great price 779,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EVO23_022
5.0
Tellur WiFi Smart Flood Sensor, AAA, white
Water Leak Detector - detects water gas, battery-powered, range: 1 m, compatible with Google Home and Manufacturer app, connect via WiFi 2,4 GHz, battery indication, standalone functional unit, central unit required to function, app with English language support for Android
779,-
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: TLLR2102
4.5
MOES Mini CO Detector, grey
Gas Leak Detector - measurement range from 0 to 1000 ppm, deviation 100 ppm, reaction time 2 s, acoustic signals, battery indication and display, features alarm, cover material plastic, operating temperature from -10 to 50 °C,, input voltage 24 V, power cable included, standalone unit
-21 % off new 789,- New 999,-
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Moes2512
3.8
BOT Smart gas detector WiFi GS5
Gas Leak Detector - mains power supply, detection reach 20 m, acoustic signals, notifications via push notifications, signal volume 70 dB, display, features alarm, cover material plastic, operating temperature from -10 to 55 °C, input voltage 230 V, compatible with Tuya and Smartlife, requires a central hub, app language options: Czech and English , compatible with Android and iOS
789,-
Buy
In stock > 5 pcs at the supplier's
Order Code: BOTdet008
Smoot ZigBee Leak Pro
Water Leak Detector - detects water gas, battery-powered, compatible with Apple Siri shortcuts and Tuya, connect via WiFi 2,4 GHz and WiFi 5 GHz, battery indication, central unit required to function,, app with Czech language support for Android and iOS
790,-
Buy
In stock > 5 pcs at the supplier's
Order Code: SMTphsnz5
4.9
Eufy Motion Sensor - White
Motion Sesnor , connect through WiFi 2,4 GHz, closed system with detection motion, range: security, application in English, power supply: Battery-Powered,
Discounted -20 % 792,- 990,-
Buy
On the way > 5 pcs
Expected 05/05/2026
Order Code: AnkEuf21_01
5.0
EMOS GoSmart PIR sensor (motion sensor), ZigBee
Motion Sensor - Interior, battery powered, reach of 8m, compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, connection via WiFi 2,4 GHz and Bluetooth, a central unit is required to function, application in Czech, applications in Czech and English for Android and iOS
799,-
Buy
In stock > 5 pcs at the supplier's
Order Code: EMOS24055
4.7
Honeywell Home R200H-N2 Interconnected fire alarm detector - temperature principle, battery operated
Temperature Sensor - interconnected fire detector, battery powered
799,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HNW22_03
3.8 11×
iQtech Smartlife SS03 Zigbee Smoke sensor, Zigbee 3.0
Smoke Detector - battery-powered , detection reach 10 m, notifications via push notifications, battery indication, features: alarm, cover material plastic, compatible with Tuya and Smartlife, standalone unit, app language options: Czech and English , compatible with Android and iOS
801,-
Buy
In stock > 5 pcs at the supplier's
Order Code: iQ21TECH144
Nedis Miniature Smoke Detector DTCTSL40WT
Smoke Detector - acoustic signals, signal volume 85 dB, features: alarm, cover material plastic, operating temperature from -10 to 50 °C, standalone unit
819,-
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: BEFlist0018
4.5
EMOS GoSmart Carbon Monoxide Detector TCS0101W, Wi-Fi
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features test button, temporary shutdown and self-diagnostics, operating temperature from -10 to 40 °C, operating humidity from 15 to 93 %, standalone unit, app language options: Czech and English , compatible with Android and iOS
Great price 829,-
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EMOS24144
4.8
iQtech Smartlife MS03 Zigbee PIR motion sensor, Zigbee 3.0
Detector PIR motion sensor, Zigbee 3.0
839,-
Currently Unavailable
Order Code: iQ21TECH140
5.0
SAFE - CO detector SAFE 10YDCO-PRO
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic, visual signals, signal volume 85 dB, battery indication, operating temperature from -10 to 55 °C, operating humidity from 5 to 95 %, input voltage 3V, standalone unit
-13 % off new 859,- New 990,-
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH300
 

Cheap detectors

Check out products sorted by price starting with the lowest price in the category cheap detectors Find products sorted from the most expensive to the cheapest in the category most expensive detectors Check out products sorted by price starting with the highest price in the category best sellers, best detectors You’ll find products sorted by reviews starting from the highest ranked in detectors reviews
P-DC1-WEB12