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Smart Home Sensors & Detectors


SmartHome detectors and sensors are designed both for connection to central units and for stand-alone use without them. These are, for example, motion sensors, smoke, gas or CO detectors or anti-flood detectors. All the sensors work with smartphones, so you always have a full overview of what's going on in your home.

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Installing a SmartHome system is easy

The installation of various detectors and sensors is user-friendly and does not require any construction modifications or complicated wiring, as these expansion modules communicate wirelessly.

Pay attention to compatibility

When choosing expansion modules, it is important to focus on the communication protocol.

  • Some accessories require a connection to the central unit. The purchased module must be built on the same communication protocol as this unit, such as ZigBee or Z-Wave. Otherwise, the two devices will not communicate.
  • Other devices work independently, for example via Bluetooth or Apple HomeKit. They can be controlled via the manufacturer's app and don't require a central unit to work.

SmartHome detectors and sensors have many uses

There are a number of detectors and sensors on the market, so we sort them into groups for better clarity.

  • Motion detectors
  • Motion detectors for windows or doors
  • Smoke, gas or carbon monoxide detectors
  • Vibration detectors
  • Flood detectors
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AlzaPlus+ Deals Smart Smoke Detectors Smoke Smart Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Smart Air Quality Meters Smart Air Quality Meters Vibration Detectors Vibration Temperature & Humidity Sensors Temperature & Humidity Door and Window Sensors Door and Window Sensors Accessories for Detectors and Sensors Accessories Jak zabezpečit chytrou domácnost?
 
556 Results
Robustel Multifunction Smart Sensor S6000U with power supply - Sensor
Robustel Multifunction Smart Sensor S6000U with power supply
Sensor - measured data: Temperature, humidity, noise level, the intensity of the lighting, atmospheric pressure, distance, acceleration, Tilt, Modbus protocol, operating temperature -20 °C to +70 °C, degree of protection IP31, input voltage 9 - 24 V DC, relative humidity 5 ~ 95% RH, RoHS2.0, WEEE, dimensions 21,5 × 37 × 76 mm, weight 30,5 g, 1 × S6000U sensor included, 1 × 3M tape, 1 × 4pin terminal block, power supply 12 W
4,122,-
Buy
In stock 1 pcs at the supplier's
Order Code: ROBsen0002
Robustel Multifunction Smart Sensor S6000U - Sensor
Robustel Multifunction Smart Sensor S6000U
Sensor - measured data: Temperature, humidity, noise level, the intensity of the lighting, atmospheric pressure, distance, acceleration, Tilt, Modbus protocol, operating temperature -20 °C to +70 °C, degree of protection IP31, input voltage 9 - 24 V DC, relative humidity 5 ~ 95% RH, RoHS2.0, WEEE, dimensions 21,5 × 37 × 76 mm, weight 30,5 g, 1 × S6000U sensor included, 1 × 3M tape, 1 × 4-pin terminal block
3,886,-
Buy
In stock 1 pcs at the supplier's
Order Code: ROBsen0001
Ajax FireProtect 2 SB (Heat/CO) (8EU) ASP white (63216) with built-in battery - Gas Leak Detector
2 colors
Ajax FireProtect 2 SB (Heat/CO) (8EU) ASP white (63216) with built-in battery
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
3,703,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25030
Ajax FireProtect 2 SB (Heat) (8EU) ASP black (63215) with built-in battery - Smoke Detector
2 colors
Ajax FireProtect 2 SB (Heat) (8EU) ASP black (63215) with built-in battery
Smoke Detector - detects temperature, temperature measurement from 0 to 50 °C, battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android and iOS
2,591,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25029
Ajax FireProtect 2 SB (CO) (8EU) ASP black (63219) with built-in battery - Gas Leak Detector
2 colors
Ajax FireProtect 2 SB (CO) (8EU) ASP black (63219) with built-in battery
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
3,671,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25033
Ajax FireProtect 2 SB (Heat) (8EU) ASP white (63214) with built-in battery - Smoke Detector
2 colors
Ajax FireProtect 2 SB (Heat) (8EU) ASP white (63214) with built-in battery
Smoke Detector - detects temperature, temperature measurement from 0 to 50 °C, battery-powered , acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features: reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, mounting kit included, standalone unit requires a central hub, app language options: Czech and English , compatible with Android and iOS
2,591,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25028
Ajax FireProtect 2 SB (CO) (8EU) ASP white (63218) with built-in battery - Gas Leak Detector
2 colors
Ajax FireProtect 2 SB (CO) (8EU) ASP white (63218) with built-in battery
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
3,671,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25032
Ajax FireProtect 2 RB (CO) (8EU) ASP black (63213) with replaceable battery - Gas Leak Detector
2 colors
Ajax FireProtect 2 RB (CO) (8EU) ASP black (63213) with replaceable battery
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, battery and mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
3,303,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25027
Ajax FireProtect 2 SB (Heat/CO) (8EU) ASP black (63217) with built-in battery - Gas Leak Detector
2 colors
Ajax FireProtect 2 SB (Heat/CO) (8EU) ASP black (63217) with built-in battery
Gas Leak Detector - detects CO (carbon monoxide), smoke, battery-powered, acoustic, visual signals, notifications via push notifications, signal volume 85 dB, battery indication and protection against sabotage, features reset and alarm, cover material plastic, operating temperature from 0 to 50 °C, operating humidity up to 80 %, ingress protection IP20, input voltage 6 V, mounting kit included, requires a central hub, app language options: Czech and English , compatible with Android and iOS
3,703,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX25031
iNELS RFMD-100 Motion detector - Motion Sesnor
iNELS RFMD-100 Motion detector
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Manufacturer app, range: lighting, electrical installation and home control, application in English, Czech and Slovak, power supply: Battery-Powered,
1,840,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet005
iNELS RFMD-200 Wireless motion detector - Motion Sesnor
iNELS RFMD-200 Wireless motion detector
Motion Sesnor , connect through Radio frequency, closed system with detection motion compatible with Manufacturer app, range: lighting, electrical installation and home control, application in English, Czech and Slovak, power supply: Battery-Powered,
1,840,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet006
iNELS RFSF-100 Flood detector - Water Leak Detector
iNELS RFSF-100 Flood detector
Water Leak Detector - detects water gas, battery-powered, range: 160 m, reaction time: 2s, compatible with Manufacturer app, connection via radio waves, battery indication, central unit required to function,, app with Czech language support, app with Czech and English language support for Android and iOS
1,784,-
Buy
In stock > 5 pcs at the supplier's
Order Code: INEdet004
Homematic IP Temperature and humidity sensor - indoor, anthracite - Sensor
Homematic IP Temperature and humidity sensor - indoor, anthracite
Sensor - wireless wall-mounted temperature and humidity sensor for indoor use, enables precise temperature control in conjunction with one or more radiator thermostatic heads or floor heating actuators, power supply 2x AAA batteries, anthracite colour
1,190,-
Buy
In stock > 5 pcs at the supplier's
Order Code: Home24011
Homematic IP with brightness sensor, outdoor, white - Motion Sesnor
2 colors
Homematic IP with brightness sensor, outdoor, white
Motion Sesnor , connect through Radio frequency, closed system with detection motion and Light compatible with Manufacturer app, range: lighting and security, application in English, Czech and German, power supply: Power plug,
3,490,-
Buy
In stock > 5 pcs at the supplier's
Order Code: Home24001
MDT Technologies KNX occupancy sensor 360° L2 IP44, matt white - Sensor
MDT Technologies KNX occupancy sensor 360° L2 IP44, matt white
Sensor - occupancy detector with IP44 protection and 2 sensors, version for installation in hollow ceilings, pure white gloss, 2 sensors, ceiling installation
4,596,-
Buy
In stock 2 pcs at the supplier's
Order Code: MDTT24311
MDT Technologies Surface mount frame for SCN-P360x4.01 series detectors, matte white - Small Frame
MDT Technologies Surface mount frame for SCN-P360x4.01 series detectors, matte white
Small Frame - mounting frame for surface mounting of the presence detector, dimensions (mm x 85 mm x 14 mm)
356,-
Buy
In stock 5 pcs at the supplier's
Order Code: MDTT24314
MDT Technologies KNX occupancy sensor 360°, 4 Pyro, brightness measurement, matt white - Sensor
MDT Technologies KNX occupancy sensor 360°, 4 Pyro, brightness measurement, matt white
Sensor - The MDT presence detector is available in several versions, up to 4 pyrosensors and a high-resolution lens, white, ceiling, Channel Hkl, Range 16 m, max. range (Ø) presence 8m
5,158,-
Buy
In stock 2 pcs at the supplier's
Order Code: MDTT24307
Wall mounted remote control - 6 buttons, anthracite - HmIP-WRC6-A - Remote Control
Wall mounted remote control - 6 buttons, anthracite - HmIP-WRC6-A
Remote Control The programmable wireless wall-mounted remote control in anthracite (HmIP-WRC6-A) is part of the Homematic IP smart home system. It has six buttons for manual control of devices or remote control of smart home system functions. The device can control lighting, blinds, shutters, garage doors, etc. Can be integrated into the 55 mm Battery Component Stand (HmIP-DS55). Colour anthracite.
2,090,-
Buy
In stock 5 pcs at the supplier's
Order Code: Home23_39
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2") - Water Leak Detector
Ajax WaterStop [1/2] (8EU) black - Remote controlled water shut-off valve (1/2")
Water Leak Detector - detects Humidity and water gas, battery-powered, range: 1100 m, reaction time: 5s, compatible with Ajax, connection via radio waves, protection against sabotage, standalone functional unit,, app with Czech language support for Android, Windows and iOS
6,194,-
Buy
In stock > 5 pcs at the supplier's
Order Code: AJAX23_023
SONOFF ZB SNZB-02D SMART Temperature & Humidity sensor - Sensor
4.6 143×
SONOFF ZB SNZB-02D SMART Temperature & Humidity sensor
Sensor - temperature measurement in °C or F, measurement of humidity in %, 2.5" display, data recovery every 5 seconds, Zigbee 3.0, mobile apps, notifications, support for voice assistants, battery operation (CR2450)
399,-
Buy
On the way > 5 pcs
Expected 31/08/2026
Order Code: SNFa073
Netatmo Smart Smoke Alarm - Smoke Detector
4.4 46×
Netatmo Smart Smoke Alarm
Smoke Detector - acoustic signals, notifications via push notifications, signal volume 85 dB, battery indication, features: alarm, cover material plastic, holder and mounting kit included, standalone unit, app language options: Czech and English , compatible with Android and iOS
2,599,-
Buy
On the way > 5 pcs
Expected 21/08/2026
Order Code: NET007f
SONOFF IP65 Zigbee LCD Smart Thermometer (Probe Version) SNZB-02LD - Digital Thermometer
2 colors
4.9 11×
SONOFF IP65 Zigbee LCD Smart Thermometer (Probe Version) SNZB-02LD
Digital Thermometer – IP65 waterproof design with 1.5m probe, temperature measurement even in liquids and confined spaces, 2.2″ LCD display, accuracy ±0.2 °C, measurement history up to 180 days, smart scenes and notifications, compatible with voice assistants, Zigbee 3.0 compatible
779,-
Buy
On the way > 5 pcs
Expected 27/07/2026
Order Code: SNFa117
FIBARO Smoke Sensor - Smoke Detector
3 variants
4.7 13×
FIBARO Smoke Sensor
Smoke Detector - detects temperature, temperature measurement from -20 to 100 °C, battery-powered , acoustic, visual signals, signal volume 85 dB, battery indication, features: alarm, operating temperature from 0 to 55 °C, operating humidity from 0 to 93 %, battery included, standalone unit requires a central hub, app language options: Czech and English
1,889,-
Buy
On the way 3 pcs
Expected 29/07/2026
Order Code: FIBR01f
SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable - Sensor
2 colors
4.8 29×
SONOFF SNZB-05P Zigbee Water Leak Sensor & Detection Cable
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 IP67, Zigbee2MQTT and Home Assistant support, cable included for extended detection range
499,-
Buy
On the way > 5 pcs
Expected 24/07/2026
Order Code: SNFa110
AlzaPlus+ Deals Smart Smoke Detectors Smoke Smart Gas Detectors Gas Water Leak Detectors Water Motion Sensors Motion Smart Air Quality Meters Smart Air Quality Meters Vibration Detectors Vibration Temperature & Humidity Sensors Temperature & Humidity Door and Window Sensors Door and Window Sensors Accessories for Detectors and Sensors Accessories Jak zabezpečit chytrou domácnost?
 

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