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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 iGET SECURITY P9 - wireless water level detector for iGET SECURITY M3B and M2B marked at 5.89 € incl. VAT. Is this what you’re looking for?
310 Results
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
33.34 €
Buy
Ordered on request
Order Code: EMOS24055
4.7
Honeywell Home R200H-N2 Interconnected fire alarm detector - temperature principle, battery operated
Temperature Sensor - interconnected fire detector, battery powered
33.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: HNW22_03
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 33.90 €
Buy
Ordered on request
Order Code: EMOS24144
3.7
FireAngel FA3820 CO detector with integrated power supply for 10 years of operation
Gas Leak Detector - detects CO (carbon monoxide), battery-powered, acoustic signals, signal volume 85 dB, battery indication, features test button, temporary shutdown and self-diagnostics, cover material plastic, operating temperature from -10 to 40 °C, operating humidity from 20 to 50 %, standalone unit
Great price 33.90 € Save 2 €
Buy
In stock > 5 pcs
Order Code: SAFEH184
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
34.90 €
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: BEFlist0018
Elektrobock IR28B Profi
Motion Sensor - for lighting, Interior, mains supply, input voltage: 230 V, reach of 12m, adjustable sensitivity
34.90 €
Buy
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: ELBOCK032
4.1 17×
AQARA Motion and Light Sensor P2
Motion Sesnor , connect through Bluetooth, open system with detection motion and Light compatible with Apple Home and Aqara Home, range: lighting and security, application in English, Czech, German, Slovak and In Polish, power supply: Battery-Powered,
35.54 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Aqara24002
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,
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 28.72 €
35.90 €
Currently Unavailable
Order Code: Moes2507
3.0
Nedis ZBDS10WT
Smoke Detector - battery-powered , notifications via push notifications, signal volume 85 dB, battery indication, features: automatic scenarios, operating temperature from -10 to 50 °C, input voltage 3V, battery and mounting kit included, compatible with Nedis SmartLife, standalone unit, compatible with Android and iOS
35.90 €
Buy
In stock 2 pcs at the supplier's
Order Code: Nedis23_003
4.8
iQtech Smartlife MS03 Zigbee PIR motion sensor, Zigbee 3.0
Detector PIR motion sensor, Zigbee 3.0
35.90 €
Buy
On the way 1 pcs
Expected 16/04/2026
Order Code: iQ21TECH140
3.5
Smoot Air Gas Sensor
Gas Leak Detector - detects natural gas, propane-butane, smoke, mains power supply, notifications via push notifications, battery indication and display, cover material plastic, compatible with Apple Siri shortcuts and Tuya, standalone unit, app language: Czech, compatible with Android and iOS
37.13 €
Buy
In stock > 5 pcs at the supplier's
Order Code: SMTphsnz8
5.0
Shelly Gen4 Flood, flood sensor, Bluetooth
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, connect via WiFi 2,4 GHz and Bluetooth, battery indication, standalone functional unit,, app with Czech language support, app with Czech and English language support for Android, Windows and iOS
37.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Shell25034
4.6
Meross Smart Presence Sensor
Sensor - dual detection technology, accurate presence detection even without motion, range up to 12 m, intelligent lighting automation, minimising false alarms, HomeKit compatibility, Alexa, Google Home and Matter, stable and secure connection, continuous cable power supply, adjustable base, protective shield against pet detection, mounting bracket included
Buy with code ALZADNI20 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 20% s kódom ALZADNI20. Kliknite a kód sa uplatní automaticky. 30.32 €
-9 % off new 37.90 € New 41.90 €
Buy
Unsealed - in stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Mer2415
EVOLVEO SecuPro, wireless siren with solar power
Siren - closed system, area of use: security, power supply: Battery-Powered, Solar and USB
37.90 €
Buy
In stock 1 pcs at the supplier's
Order Code: EVO24013
4.0
MOES Smoke Detector, Zigbee
Smoke Detector - temperature measurement from 0 to 55 °C, battery-powered , detection reach 15 m, acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, operating temperature from 0 to 55 °C, battery and mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
37.90 €
Buy
On the way > 5 pcs
Expected 23/04/2026
Order Code: Moes22_38
3.7
EZVIZ Smoke detector T4C
Smoke Detector - battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication, features: test button and temporary shutdown, operating temperature from -10 to 55 °C, operating humidity up to 95 %, battery included, compatible with EZVIZ, standalone unit requires a central hub, app language options: Czech and English , compatible with Android and iOS
Great price 37.90 € Save 2 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EZVIZ23_12
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
-7 % off new 38.90 € New 41.90 €
Buy
Unsealed - in stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH300
iQtech SmartLife GS02, Wi-Fi
Gas Leak Detector - mains power supply, acoustic signals, cover material plastic, input voltage 230 V, power cable included, compatible with Tuya and Smartlife, standalone unit, app language: English , compatible with Android and iOS
39.90 €
Buy
On the way 1 pcs
Expected 16/04/2026
Order Code: iQtech23_03
4.4 10×
Kidde 5DCO carbon monoxide leak detector
Gas Leak Detector - detects CO (carbon monoxide), signal volume 85 dB, standalone unit
39.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH168
3.8 24×
iQtech SmartLife CS01W Combo CO + Smoke Detector, Wi-Fi
Smoke Detector - detects gas, measurement range from 50 to 300 ppm, battery-powered , acoustic signals, signal volume 85 dB, cover material plastic, compatible with Tuya, standalone unit, app language options: Czech and English , compatible with Android and iOS
-4 % off new 39.90 € New 41.72 €
Buy
Unsealed - in stock 1 pcs
Order Code: iQ21TECH134
4.0
Flammable and Explosive Gas Detector SAFE 808L (Natural Gas)
Gas Leak Detector - detects natural gas, propane-butane, measurement range to 2500 ppm, mains power supply, reaction time 20 s, acoustic, visual signals, signal volume 85 dB, display, features test button, self-diagnostics and alarm, cover material plastic, operating temperature from 0 to 50 °C, ingress protection IP30, input voltage 230 V, mounting kit included, standalone unit
39.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH149
4.6
IMMAX NEO Smart Occupancy Sensor, Zigbee 3.0
Motion Sesnor , connect through WiFi 2,4 GHz and WiFi 5 GHz, open system with detection motion and Light compatible with Apple Siri shortcuts, Tuya and Immax NEO PRO, range: lighting, electrical installation and security, application in English, Czech, German and Hungarian, power supply: Power plug and USB,
41.71 €
Buy
In stock > 5 pcs at the supplier's
Order Code: IMXX2333
3.8 24×
iQtech SmartLife CS01W Combo CO + Smoke Detector, Wi-Fi
Smoke Detector - detects gas, measurement range from 50 to 300 ppm, battery-powered , acoustic signals, signal volume 85 dB, cover material plastic, compatible with Tuya, standalone unit, app language options: Czech and English , compatible with Android and iOS
41.72 €
Buy
On the way > 5 pcs
Expected 16/04/2026
Order Code: iQ21TECH134
SAFE Water Guard, white
Sensor - wireless water leak detector, the detector is powered by a replaceable battery that allows continuous operation for up to 3 years, colour white
Buy with code ALZADNI10 The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Získajte zľavu 10 % s kódom ALZADNI10. Kliknite a kód sa uplatní automaticky. 37.71 €
New arrival 41.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26005
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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
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