Refresh the page

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 EMOS GoSmart Carbon Monoxide Detector TCS0101W, Wi-Fi marked at 179 Kč incl. VAT. Is this what you’re looking for?
All from 354
RETLUX RDT 201 - Smoke Detector
RETLUX RDT 201
349,-
Currently Unavailable
Smoke Detector - battery-powered , detection reach 100 m, signal volume 85 dB
View
Bentech C999 Carbon Monoxide Autonomous Fire Detector - Gas Leak Detector
Bentech C999 Carbon Monoxide Autonomous Fire Detector
349,-
In stock > 10 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, operating...
Solight CO flue gas detector, 85 dB - Gas Leak Detector
Solight CO flue gas detector, 85 dB
Discounted -13 % 369,- 429,-
On the way > 5 pcs
Expected 07/04/2026
Gas Leak Detector - detects CO (carbon monoxide), measurement range from 50 ppm, gas detection sensitivity 50 ppm, battery-powered, acoustic, visual signals, signal volume 85 dB,...
Electrobock CN15F with 2 sensors - Motion Sensor
Electrobock CN15F with 2 sensors
369,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sensor - for lighting, Exterior and Interior, mains supply, input voltage: 230 V, reach of 12m, adjustable sensitivity, independently functional unit
EVOLVEO wireless vibration detector for Alarmex/Sonix - Vibration Detector
EVOLVEO wireless vibration detector for Alarmex/Sonix
369,-
Currently Unavailable
Vibration Detector - detects Opening windows and doors and vibration gas,, range: 40 m, standalone functional unit
View
SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable - Sensor
SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable
-26 % off new 369,- New 499,-
Unsealed - in stock 1 pcs
3 colors
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - protection against water damage in your home, Zigbee, email alerts, SMS or mobile phone notifications, on a CR2477 battery (battery not included), degree of protection...
iGET SECURITY EP1 - wireless PIR motion sensor for iGET M5-4G alarm - Detector
iGET SECURITY EP1 - wireless PIR motion sensor for iGET M5-4G alarm
-40 % off new 369,- New 619,-
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Detector PIR motion sensor for iGET SECURITY M5 alarm. Protection against sabotage, highest transmission security 256bit, very long battery life of 5 years, the alarm constantly...
SAFE HOME SAFE 10Y30-BASIC - Smoke Detector
SAFE HOME SAFE 10Y30-BASIC
379,-
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 from 5 to 95 %, input...
Nous E4 Zigbee Smart water leak sensor - Water Leak Detector
Nous E4 Zigbee Smart water leak sensor
379,-
Currently Unavailable
Water Leak Detector - detects water gas, battery-powered, range: 30 m, compatible with Tuya and Manufacturer app, connect via WiFi 2,4 GHz, battery indication, central unit...
View
Elektrobock LX28B - Motion Sensor
Elektrobock LX28B
379,-
Currently Unavailable
Motion Sensor - for lighting, Interior, mains supply, input voltage: 230 V, reach of 12m
View
Elektrobock IR24A - Motion Sensor
Elektrobock IR24A
399,-
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sensor - for lighting, Interior, mains supply, input voltage: 230 V, reach of 10m, adjustable sensitivity, independently functional unit
Dahua DHI-HY-SA20A - Smoke Detector
Dahua DHI-HY-SA20A
399,-
In stock > 5 pcs at the supplier's
Smoke Detector - battery-powered , detection reach 40 m, reaction time 10 s, acoustic signals, signal volume 85 dB, battery indication, features: test button, temporary shutdown...
Meross Smart Water Leak Sensor - Sensor
Meross Smart Water Leak Sensor
399,-
Currently Unavailable
Sensor - dual detection probe (upper and lower), detection of small droplets and larger leaks, instant acoustic alarm 100 dB, alerts via push notifications to your phone,...
View
Xiaomi Mi Motion Sensor 2S - Motion Sesnor
Xiaomi Mi Motion Sensor 2S
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Light compatible with Xiaomi Home, range: lighting, security and home control, power supply:...
SONOFF SNZB-05P Zigbee Water Leak Sensor - Sensor
SONOFF SNZB-05P Zigbee Water Leak Sensor
399,-
In stock > 10 pcs
3 colors
Order by midnight, get it at the AlzaBox in the morning.
Info
Sensor - protection against water damage in your home, Zigbee, email alerts, SMS or mobile notifications, on a CR2477 battery, degree of protection IP67, Zigbee2MQTT and Home...
MOES Water Leakage Detector, Zigbee - Water Leak Detector
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,...
View
SwitchBot Motion Sensor - Motion Sensor
SwitchBot Motion Sensor
399,-
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sensor - for lighting, Interior, battery powered, reaction time: 0,5s, connection via WiFi 2,4 GHz, a central unit is required to function
FireAngel SB5 fire and smoke detector - Smoke Detector
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 - Smoke Detector
KIDDE 29HD Smoke Detector
399,-
In stock > 10 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Smoke Detector - acoustic, visual signals, signal volume 85 dB, standalone unit
iGET SECURITY P1v2 - wireless PIR motion detector - Motion Sensor
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 Sensor 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 - Motion Sensor
iGET SECURITY P2 - wired PIR motion detector for iGET SECURITY M3B and M2B
399,-
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sensor - for alarm, Interior, mains supply, input voltage: 12 V, reach of 12m, connection via radio waves, battery indication, independently functional unit
EZVIZ T1C PIR - Motion Sesnor
EZVIZ T1C PIR
-35 % off new 399,- New 619,-
As good as new - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Motion Sesnor , closed system with detection motion compatible with Google Home and EZVIZ, range: security, application in English, Czech, German and Hungarian, power supply:...
EMOS GoSmart Water Leak Detector P56000S, ZigBee - Water Leak Detector
EMOS GoSmart Water Leak Detector P56000S, ZigBee
-40 % off new 399,- New 669,-
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Water Leak Detector - detects water gas, battery-powered, sound level: 85dB, compatible with Tuya, Lidl Home, Smartlife, EMOS GoSmart and Manufacturer app, battery indication,...
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 signals, signal volume 85 dB, battery indication, features: alarm, cover material plastic, operating temperature...
Previous
24 more...
Other

No longer sold

Archive
Chcete doručiť tovar na Slovensko? Prezrite si Detektory
Für den Versand nach Deutschland, besuchen Sie bitte Detektoren und Sensoren
Für den Versand nach Österreich, besuchen Sie bitte Detektoren und Sensoren
Magyarországra rendelnél? Látogasd meg ezt a termékkategóriát Szivárgás érzékelők és detektorok

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.

More information
I understand Detailed settings Reject everything
P-DC1-WEB17