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Detectors reviews and tests

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Hundreds of categories, thousands of products, millions of details and user reviews for detectors. How can you make sense of all of this? Try our Alza Test, which guarantees an objective selection based on customers' experiences. How the products from detectors rank are based solely on various data and feedback from actual people who have purchased the products.

171 Results
3.8
iGET SECURITY P9 - wireless water level detector for iGET SECURITY M3B and M2B
Water Leak Detector - detects water gas, battery-powered, range: 80 m, connect via GSM, battery indication, central unit required to function
Amazing Deal 5.69 €
Buy
In stock 2 pcs
Order Code: NU105r
3.7 24×
iGET SECURITY EP1 - wireless PIR motion sensor for iGET M5-4G alarm
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 monitors the activity of this sensor, also a signal, battery percentage and more. Special magnetic holder for attachment containing trigger.
25.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: iGt21015
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
36.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Shell25034
5.0
Homematic IP Smoke detector HmIP-SWSD-2
Smoke Detector - battery-powered , detection reach 40 m, acoustic, visual signals, signal volume 85 dB, battery indication, features: test button, cover material plastic, operating temperature from 5 to 30 °C, ingress protection IP20, input voltage 3V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 57.64 €
64.04 €
Buy
In stock 1 pcs
Order Code: Home25001
5.0
Airthings View Pollution - air quality monitor
Air Quality Meter is designed for indoor environments where it monitors humidity and temperature. You use batteries or a USB cable to power it. Easily connect the air detector to the app via Wi-Fi or HUB using Airthings Smartlink. The app is compatible with both Android and iOS operating systems. Airthings View Pollution also communicates with IFTTT, Google Assistant and Amazon Alexa voice assistants.
171.90 €
Buy
In stock 3 pcs
Order Code: Air22TNG2
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
32.53 €
Buy
Ordered on request
Order Code: EMOS24055
5.0
QINGPING CO2 & Temperature & RH Monitor
Sensor Monitor for real-time remote monitoring of carbon dioxide levels and temperature and humidity conditions
71.90 €
Currently Unavailable
Order Code: QGP008a
5.0
EVOLVEO SecuPro wireless PIR motion sensor
Motion Sesnor , connect through WiFi 2,4 GHz and WiFi 5 GHz with detection motion compatible with Tuya, range: security, application in English, Czech and Slovak, power supply: Battery-Powered,
20.32 €
Currently Unavailable
Order Code: EVO24008
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
36.90 €
Buy
On the way > 5 pcs
Expected 17/04/2026
Order Code: Moes22_38
3.8
Xiaomi Mi Motion Sensor 2S
Motion Sesnor , connect through Bluetooth, closed system with detection motion and Light compatible with Xiaomi Home, range: lighting, security and home control, power supply: Battery-Powered,
16.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: XI300l04
4.0
Airthings Wave Enhance
Air Quality Meter - detects temperature, humidity, air pressure, TVOC (volatile organic compounds), CO₂ (carbon dioxide), noise, battery-powered, visual signals, notifications via push notifications, features: memory, operating temperature from 0 to 45 °C, operating humidity from 5 to 95 %, battery included, standalone unit requires a central hub, compatible with Android and iOS
152.90 €
Buy
In stock > 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Air24001
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
39.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EZVIZ23_12
3.6
Meross Smart Water Leak Sensor
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
24.90 €
Buy
In stock 4 pcs
Order Code: Mer24_14
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
Amazing Deal 23.90 €
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Mer24_13
3.7
IMMAX NEO Smart 3in1 PIR, occupancy and light sensor, Zigbee 3.0
Sensor - 3in1 PIR sensor, presence and lighting, Zigbee 3.0 (Tuya) is a smart device, which combines motion detection (PIR), monitoring the presence of people and measuring light levels, power supply via USB C connector, thanks to Zigbee communication, it easily connects to the Tuya smart home, Immax NEO PRO app in Czech and 60 other languages compatible with iOS, Android, Apple Siri shortcuts and further with TUYA systems, LIDL, ideal for smart lights, alarms or optimising energy consumption
Amazing Deal 28.69 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: IMMX25027
4.0
AQARA Vibration Sensor T1 (VB-S01D)
Vibration Detector - detects Opening windows and doors, Fall and vibration gas, battery-powered, reaction time: 1s, compatible with Apple Home and Manufacturer app, battery indication and adjustable sensitivity, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
Buy with code ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 17.91 €
Amazing Deal 19.90 €
Buy
In stock 5 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Aqara25021
3.6
EVOLVEO WiFi WATER, smart flood detector
Water Leak Detector - detects water gas, battery-powered, compatible with Tuya, connect via WiFi 2,4 GHz, battery indication, standalone functional unit,, app with Czech language support, app with Czech and English language support for Android and iOS
16.90 €
Buy
In stock 4 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: EVO23_024
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 ALZADAYS10AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 10 % Rabatt mit dem Code ALZADAYS5AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 36.81 €
New arrival 40.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: SAFEH26005
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
29.90 €
Buy
In stock 1 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: Aqara26001
Philips Hue Enrave S white + Philips Hue Motion Sensor
Ceiling Light - LED, dimmable, luminous flux 1220 lm, adjustable light temperature, connects via Bluetooth, control via app in Czech, compatible with Apple Home, height 6,6 cm, width 26,1 cm, length 26,1 cm, IP20
Buy with code ALZADAYS15AT The discount code gives the option of applying a discount on a given product when entering the code in the shopping cart. Erhalten Sie 15 % Rabatt mit dem Code ALZADAYS15AT. Das Angebot gilt bis zum 15. September 2025 oder solange der Vorrat reicht und ist nur für Endverbraucher bestimmt. 144.42 €
169.90 €
Buy
In stock > 5 pcs
Order Code: PHLS25062set
WiZ Contact sensor
Door and Window Sensor - wireless, compatible with Google Home and Manufacturer app, connect via WiFi 2,4 GHz, battery indication, night orientation light and adjustable sensitivity, range of 20m, separately functional unit, supported OS: Android and iOS, application in Czech, application in Czech and English
27.90 €
Buy
In stock 3 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: WiZ25001
HEATIT Z-Smoke Multisensor 230VAC White, Z-Wave smoke sensor
Smoke Detector - detects motion, temperature, mains power supply, detection reach 100 m, acoustic signals, signal volume 85 dB, features: test button and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity from 0 to 85 %, ingress protection IP20, input voltage 230 V, requires a central hub, compatible with Android, Windows and iOS
161.90 €
Buy
In stock 1 pcs
Order Code: HEA23_14
GARNI 204 OneCare
Air Quality Meter - detects temperature, humidity, dust particles, temperature measurement from -40 to 70 °C, humidity measurement from 1 to 99 %, mains + battery-powered, detection reach 100 m, acoustic, visual signals, battery indication and display, features: hours and alarm clock, power adapter and battery included, standalone unit
115.90 €
Buy
In stock 2 pcs
Order by midnight, get it at the AlzaBox in the morning.
Info
Order Code: GARNI19014
EVOLVEO SecuPro, wireless siren with solar power
Siren - closed system, area of use: security, power supply: Battery-Powered, Solar and USB
30.90 €
Buy
On the way 1 pcs
Expected 17/04/2026
Order Code: EVO24013

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