Top 10 Best contact sensor in 2026

Last Updated - 6/8/2026

🏆Best Choice

Aqara

Aqara Zigbee Door and Window Sensor 3 Pack, Wireless Mini Contact Sensor, Home Automation, Requires Aqara Hub, Zigbee Connection, Kid Safety, Compatible with Apple HomeKit, Alexa, Works with IFTTT

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•[Notes] An Aqara Hub is required and sold separately. (Not compatible with hubs from other brands.) Requires a secure 2.4GHz Wi-Fi connection for Hub M2, M1S, E1, M1S Gen2, G2H Pro, and G2H; or 2.4/5GHz Wi-Fi for Camera Hub G3. (Hub M2 also supports wired Ethernet via RJ45.) For a stable Zigbee connection, ensure the sensor is placed within 400 inches (10 meters) of the Aqara Hub.
•[Proximity] For a sturdy connection, ensure that the Aqara Door and Window Sensor is within 400 inches of the Aqara Zigbee hub, and the hub is within the same range from the Wi-Fi router. Additionally, make sure the hub and the router are on the same local area network (LAN). Zigbee2MQTT and comparable third-party USB dongles are not officially supported by Aqara. Full product functionality may be limited or unavailable.
•[Unauthorized Entry Detection & Home Automation] The Zigbee Door Sensor alerts your phone and triggers the Aqara Hub's local alarm upon unexpected door/window openings. It also controls other Aqara devices based on door/window status. Conveniently check your door or window, kids room and anywhere you want to be notified. ***Requires Aqara Hub，not third-party hub.
•[0.86 Inch Wide Gap Allowed]The Aqara Door and Window Sensor works with most types of doors, windows, and other fixtures with similar mechanism, such as drawers, cabinets, and more.(Note: Please ensure that the surface where you plan to stick the Aqara Zigbee Door and Window Sensor is flat and easily adhesive, and the allowed gap between the door is up to 0.86 inch.) The main sensor unit dimension:1.61*0.87*0.43 inch, the magnet dimension:0.79*0.39*0.39 inch.
•[Hands-Free Voice Control]Compatible with Apple HomeKit, Alexa for a hands-free experience.- no need to go downstairs or pick up your phone again. You'll always know whether your home door is opening or closing (The Aqara Door and Window Sensor is not compatible with SmartThings currently.)

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$54.99

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Aqara

Aqara Water Leak Sensor 3 Pack, Zigbee Wireless Water Leak Detector for Alarm System and Smart Home Automation, Requires AQARA HUB, App Notifications, for Kitchen, Bathroom, Basement, Works with IFTTT

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•[Notes] An Aqara Hub is required and sold separately. Not compatible with hubs from other brands. Requires a secure 2.4GHz Wi-Fi connection for Hub M2, M1S, E1, M1S Gen2, G2H Pro, and G2H; or 2.4/5GHz Wi-Fi for Camera Hub G3. (Hub M2 also supports wired Ethernet via RJ45.). Pair the Zigbee Water Leak Sensor with an Aqara Hub before connecting to Apple HomeKit, Google Home, or Alexa. For a stable Zigbee connection, ensure the sensor is placed within 10 meters(33 ft) of the Aqara Hub.
•[Proximity] To ensure a stable connection, keep the Aqara Water Leak Sensor within 400 inches (approximately 10 meters) of the Aqara Zigbee Hub, and place the hub within the same range of your Wi-Fi router. Ensure both are connected to the same local area network (LAN). Zigbee2MQTT and comparable third-party USB dongles are not officially supported by Aqara. Full product functionality may be limited or unavailable.
•[Drip and Leak Detection] Equipped with highly sensitive probes that detect water levels as low as 0.5 mm (approximately 0.02 inch), this water leak detector instantly sends alerts to your phone and triggers the local alarm on the Aqara Hub whenever a leak is detected.
•[Home automation] The water leak detectors for home can control and trigger other Aqara devices when water is detected, allowing you to take prompt action to keep your home safe. ***Requires Aqara Hub, not third-party hub.
•[Wireless & Compact Design] No wiring or screws are required. The small, sleek design allows you to place the Zigbee leak sensor on any flat surface in your kitchen, basement, laundry room, or any area you want to monitor. Recommended placements include near or under toilets, water heaters, washing machines, dishwashers, sinks, fish tanks, sump pumps, or any area prone to leaks.
•[Industry-Leading Quality] Durable IP67 water-proof housing with rust-proof exterior coating. Please remove the battery tab before use. If the device does not work, check the battery level. For any questions, please feel free to contact us.

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$39.99

$56.99

-30%

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Aqara

Aqara Smart Hub M3 for Home Automation, Matter Controller, Thread Border Router, Features Zigbee, Bluetooth, Wi-Fi, PoE, IR, Supports Alexa, Apple HomeKit, SmartThings, IFTTT

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•[Multi-Protocol Hub with Matter Bridge] The M3 is a versatile hub supporting Aqara Zigbee and Thread devices. It integrates third-party devices into the Aqara Home app. Supports advanced Matter bridge functionality, enabling Aqara-exclusive scenes and signals to sync with Matter ecosystems such as Home Assistant for seamless integration. Supports up to 127 Aqara Zigbee devices （** Not third-party Zigbee devices) and 127 Thread devices (Repeaters are needed).
•[Edge Compatibilities and Local Automations] The M3 serves as an Edge Hub, prioritizing local control and automation. Upon integration, it supersedes existing Aqara hubs, shifting the automations among them to local operation (Some cloud-based notifications still require internet). Upgrade-friendly, it supports migrating Zigbee devices from older Aqara hubs.
•[Smart IR Blaster with Feedback and Learning] The 360°IR blaster not only sends commands but also provides accurate status updates by detecting traditional remote use. It connects IR air conditioning units to Matter, functioning as an AC thermostat when paired with an Aqara Temperature and Humidity Sensor. (Note: Only one AC device can be exposed to Matter. Functionality may vary based on the Matter integration app. For Apple Home exposure, use Matter integration instead of HomeKit.)
•[Optimal Wired and Wireless Connectivity] Offering both wired and wireless solutions, the smart home hub M3 provides dual-band Wi-Fi (2.4/5 GHz) with advanced WPA3 security, and a Power over Ethernet (PoE) port. The addition of a USB-C port allows for mini-UPS and power bank connections, delivering unparalleled stability. (2A USB power adapter is not included. ) . Note: To ensure a stable connection, place the Hub M3 between 6 to 19 feet from the router.
•[Privacy-Focused with Encrypted Storage, Easy Setup and Versatile Placement] The M3 prioritizes privacy by excluding microphone or camera components. It boasts 8GB end-to-end encrypted local storage, for device lists, configuration parameters, and automation configuration data. Additionally, it includes a mount and screws for flexible placement on flat surfaces, walls, or ceilings. Magic Pair technology ensures effortless detection by the Aqara Home app upon power-up.

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$109.98

$139.99

-21%

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Aqara

Aqara Door and Window Sensor P2, Matter Over Thread, Requires Thread Border Router, Contact Sensor with Remote Alarm and Local Automation, Supports Apple Home, Google Home, Alexa

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•[Native Matter Support over Thread] As one of the first sensors to support Matter, the P2 supports access to Aqara Home, Apple Home, Google Home, Amazon Alexa and Samsung . Meanwhile, as a sensor based on the Thread protocol, the P2 provides enhanced connectivity, low-power consumption, more stability, and low latency. (**Note: 2-in-1 Matter Controller & Thread Border Router is required and sold separately)
•[Open/Closed Status Monitoring] With a built-in high-precision Hall sensor, the Aqara Door and Window Sensor P2 can detect the opening and closing status of doors, windows, and drawers precisely. Once the sensor is triggered, it will send real-time alert notifications to your smartphone whether you're at home or away, ensuring you're always aware of any potential security concerns. (*Note: To ensure a stable connection, place the Door and Window Sensor P2 main unit between the accessory unit is no more than 22 mm )
•[Local Home Automations] You can integrate the Door and Window Sensor P2 with your smart home ecosystem to enable advanced automations like adjusting thermostat settings or activating security cameras when a door or window is opened. Moreover, the automations are executed without the cloud, which can protect the user’s privacy and will keep working even if there is no internet connection.
•[Voice Alerts and Status Notifications] The Aqara Door and Window Sensor P2 supports Apple Siri, Alexa, and Google Assistant. With these voice assistants, you can receive alerts about events such as door entries, or ask whether a door is open, allowing you to effortlessly monitor your home.
•[Matter Compatibility] A Matter Controller & Thread Border Router 2-in-1 is required to enjoy seamless integration with a Matter-enabled smart home ecosystem. Currently, the following hubs are tested, but new hubs will be added over time. Aqara Home(Hub M3), Apple: Apple TV 4K (3rd gen, 128 GB), Apple TV 4K (2nd gen), HomePod (2nd gen), HomePod mini | Samsung: Hub v3, Aeotec Hub v3, | Amazon: Echo (4th gen) | Google: Nest Hub (2nd gen), Nest Hub Max, Nest Wi-Fi Pr
•[Easy Installation & Long Battery Life] With its compact design and adhesive back, the sensor is easily integrated into any interior. Additionally, equipped with a powerful CR123A battery, it provides uninterrupted protection with infrequent replacements.* The battery life may vary depending on the border router and Matter app the sensor is connected to. For best results, the future Aqara border router is advised.

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$23.99

$26.99

-11%

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Aqara

Aqara Zigbee Temperature and Humidity Sensor-3 Pack, Wireless Thermometer Hygrometer for Home Automation, Remote Monitoring, Aqara Hub Required, Compatible with Apple HomeKit, Alexa, Works with IFTTT

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•[Notes] An Aqara Hub is required and sold separately. Hubs from other brands are not supported. A secured 2.4GHz Wi-Fi connection is needed for Hub M2/M1S/E1/M1S Gen2 and Camera Hub G2H Pro/G2H, while Camera Hub G3 supports 2.4/5GHz (Wi-Fi 6 not supported). Hub M2 also supports wired Ethernet (RJ45). To integrate the sensor with Apple HomeKit or Alexa, please bind the sensor through an Aqara Hub. For a stable Zigbee connection, keep the sensor within 10 meters (33 ft) of the hub.
•[3-in-1 Environmental Monitoring] Monitor your home’s environment with ease using the Aqara smart temperature sensor’s 3-in-1 functionality. It accurately measures temperature, humidity, and atmospheric pressure, ensuring you stay informed about your living conditions. All data is tracked in real time and displayed on the Aqara app, allowing you to view trends and make adjustments for a healthier and more comfortable home environment.
•[Proximity] For a sturdy connection and accurate transmission of temperature and humidity data, ensure that the Aqara Zigbee temperature humidity sensor is within 400 inches of the Aqara Zigbee hub, and the hub is within the same range from the Wi-Fi router. Additionally, make sure the hub and the router are on the same local area network (LAN). Zigbee2MQTT and comparable third-party USB dongles are not officially supported by Aqara. Full product functionality may be limited or unavailable.
•[Remote Monitoring and Home Automation] When the room temperature reaches above or below a certain threshold, the Aqara temperature sensor can send a push alert to your phone or trigger the Aqara Hub night light. Additionally, the Aqara Temperature and Humidity Sensor can control other connected devices such as Aqara Smart Plug to ensure that your fan or humidifier maintains a constant level of comfort for you and your family.***Requires Aqara Hub, not third-party hub.
•[Accurate Measurement] Utilizes high-quality sensor from the industry-leading manufacturer, Sensirion.(Please avoid installing the Aqara Temperature Sensor in environments with extreme temperatures, such as inside a refrigerator.) Note: Please pull the plastic battery tab out before long-pressing the reset button to start the device. If the device disconnects, please ensure the battery has power. If not, please rotate the temperature sensor to remove the battery cover and replace the battery.

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$56.99

$64.99

-12%

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THIRDREALITY

THIRDREALITY Zigbee Contact Sensor, Door and Window Monitor, Home Automation, Works with Home Assistant, SmartThings, Aeotec, Homey, Hubitat or Echo Devices with Build-in Zigbee Hub,hub Required

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•ZIGBEE STANDARD COMPATIBLE DOOR SENSOR: Works with compatible Zigbee hubs or Echo devices with Zigbee hub built-in. Such as Echo (4th Gen), Echo Plus (1st Gen and 2nd Gen), Echo Show 8 Gen3, Echo Show 10 (Gen2 and Gen3).Echo Studio, Eero 6, Eero Pro 6, Home Assistant, SmartThings 2015/2018, Aeotec, Hubitat, Homey Bridge, Homey Pro, Third reality Hub and Third Reality Smart Bridge.
•HASSLE-FREE SETUP: Installs in a few seconds. Just make sure device in paring mode and compatible Echo device automatically discovers it by saying “Alexa, discover devices”.
•SUIT FOR MOSTLY DOORS AND WINDOWS OF THE HOUSE AND 2-YEARS LONG BATTERY LIFE: Door Sensor uses two AAA 1.5V Alkaline batteries for power, the batteries can last for up to 2 years and it is very easy to replace them. Note: Indoor use only and do not install the Door Sensor on metal door or window.
•MORE FUN WITH ALEXA ROUTINES: Using the Alexa app, create your own routines that are triggered When door or window is open, turn on a light, send an alert to your phone, let Alexa make a voice alarm or make a joke, etc.
•UPGRADED THIRD REALITY APP AND SKILL FUNCTIONS: Connected with Third Reality Hub/Speaker, you can check the battery level in the APP, then replace the batteries in time; history record is also open to the users, so you can know when the state of the movement has been detected and deal with it in time. Enabled Third Reality Skill in the Alexa APP, you will have a low battery warning by emails.
•More Smart Assistant Supported: Enabled by Smart Bridge MZ1 (Sold Separately), integrates with Apple HomeKit, Google Home, Amazon Alexa (Smart Speaker required) and SmartThings, to achieve easy control and monitoring. Additionally, it supports software OTA (Over-The-Air) updates, allowing for effortless firmware upgrades

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$19.99

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Aqara

Aqara Presence Sensor FP2 Bracket Set, mmWave Radar Wired Motion Sensor, Zone Positioning, Multi-Person & Fall Detection, Supports HomeKit, Alexa, and Home Assistant, 2.4 GHz Wi-Fi Required

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•[Installation Method] With the new installation method for the FP2, you can now mount it in the corner of a room. Just attach the included angle mount and switch to the corresponding mode in the app. This setting eliminates dead zones caused by the sensor’s angle and rotates the room layout by 45 degrees, allowing for enhanced zone detection and more automation options.
•[Multi-Person &Zone Positioning] The Aqara Presence Sensor FP2 can simultaneously detect up to 5 people and trigger different scenarios and automation.Moreover, the FP2(2.4GHz Wi-Fi REQUIRED) offers significant advantages over PIR infrared motion sensors by using a single radar sensor to monitor rooms of up to 40 m² (430 sq ft). You can also divide it into up to 30 zones, such as sofa, bed or desktop, etc. and set up individual automations for each zone. It is like having several PIR sensors at the same time with one Presence Sensor FP2. Please note: the FP2 is a wired sensor that should be constantly powered.
•[Sleep monitoring& Fall Detection] You can install FP2 next to the bed and select the sleep monitoring mode to sense the human body's sleep status in real time and generate a sleep health report.Moreover, you also can mount the FP2 on the ceiling and choose the Falling Detection Mode, which will detect and alert you through the app if someone falls. (Note: The FP2 is not a medical device, and can only be used for notification purposes)
•[Multi-Ecosystem Support] The Aqara Presence Sensor FP2 is exposed as multiple sensors to HomeKit, Alexa, Samsung SmartThings and Home Assistant. (Note: The device can be added directly to Home Assistant using HomeKit Controller integration) You can integrate the sensor easily without requiring an Aqara hub, which is a great solution for smart home enthusiasts. For a stable connection, ensure the sensor is placed within 6 meters (19 feet) of your router.
•[Ultra-High Precision, Privacy, and Enhanced Features]By implementing millimeter-wave radar technology, the Presence Sensor FP2 provides precise detection of movement without false negatives, even for slight movements. No camera monitoring system maximizes privacy. With IPX5, it can be installed in wet environments. Additionally, it has a built-in light sensor for flexible lighting automations (Only available in Aqara Home, HomeKit, and IFTTT). Automations of FP2 are executed without sending to the cloud and will keep working even if there is no internet connection.

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$82.99

$89.99

-8%

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Aqara

Aqara Smart Light Switch H2 (2-in-1 Neutral, 4 Buttons, 3 Channels), Thread/Zigbee Protocol, Wall Switch for Smart Home, Supports Apple Home, Google, Alexa, Matter Over Thread

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Decoupled Switch Mode: The switch includes 3 electrical switches (also functions as wireless switch) and 1 pure wireless switch, hence 4 wireless switches in total, enabling sophisticated and technically impressive automations when paired with other Aqara products. For the top 3 buttons, you can disable its physical control of the relay, allowing it to function like the decoupled buttons below for triggering scenes or automations
•Thread/Zigbee Protocol: The smart light switch supports Matter-over-Thread and Zigbee, ensuring compatibility with major third-party platforms such as Apple Home, Google Home, Alexa, SmartThings, and Home Assistant. In Zigbee mode, users can access the full range of Aqara Home features, including MARS Tech and LED indicator customization.(Note:Zigbee2MQTT and comparable third-party USB dongles are not Aqara-supported. Full product functionality may be limited or unavailable)
•2-in-1 Neutral Compatibility: There are no compatibility issues with the Smart Wall Light Switch, which supports both neutral and no-neutral wiring to simplify installation. However, features such as power monitoring and overload protection only work with neutral.（Note: These features may be unavailable in some third-party Matter ecosystems.)
•Power-Off Memory Mode: This feature ensures your appliance retains its last settings after a power outage, automatically resuming operation as it was—either on or off. For added flexibility, you can customize its behavior in Aqara Home, choosing to restore previous settings, always power on, always power off, or even reverse the previous state. Note: This feature of customizing its behavior may not be available in some third-party Matter ecosystems. For full functionality, we recommend using Zigbee mode with an Aqara hub.
•Home Automation: This smart switch supports remote control, scheduling, voice commands, and integration with other smart devices for seamless Smart Home automation

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$54.99

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Aqara

Aqara Smart Valve Controller T1,Matter Over Bridge,Requires Aqara Zigbee 3.0 Hub, Combined with Water Leak Detectors for Home, Supports App Remote Control Shutoff, Supports HomeKit, Alexa, Google

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•[Zigbee with Matter Support] An Aqara Zigbee 3.0 Hub is required and sold separately. The Valve Controller T1 features Matter-over-bridge support and is compatible with major third-party platforms, like Apple Home, Google Home, Alexa, Samsung SmartThings, Homey, Home Assistant. An Aqara hub (except the Camera G2H Pro) and a Matter Controller for the corresponding platform are required.
•[Real-time monitoring and automation] Pair it with water leak sensors for automatic shutdown when leaks are detected, ensuring safety even when you're away. Monitor valve status in real time through the Aqara Home app to prevent potential risks and enhance safety. This device does not provide safeguards against water ingress and is not suitable for outdoor installation.
•[Easy installation and wide compatibility] Valve Controller T1 is a complete retrofit device, easy to install on existing valves without additional piping work. Compatible with DN15, DN20, DN25 (1/2 in, 3/4 in, 1 in) in pipe diameters and lever/butterfly handles to meet diverse needs.(Note:Different pipe sizes require different installation accessories)
•[Flexible Remote Control] Control your valves remotely through the Aqara Home app or manually on-site. Enjoy the convenience and peace of mind with flexible options for managing your water from anywhere.
•[Energy saving and environmental protection] The Valve Controller T1 features a 4 × AA battery power source, eliminating the need for additional wiring at the valve installation point. Designed with a low-power consumption system to extend battery life and reduce energy waste, the device can operate for up to 2 years, providing long-lasting water safety. This aligns with the energy conservation and environmental protection goals of modern households, making it an eco-friendly addition to your smart home.

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$69.99

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Aqara

Aqara Dual Relay Module T2,Smart Relay Switch Dry Contact Mode for Garage Doors and Boilers, Light Switch & Roller Shade Switch, Supports Homekit and Alexa,Requires Aqara Zigbee 3.0 HUB

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•[Compatibility Features] The Dual Relay Module T2 is compatible with a variety of mainstream ecosystems, like Matter (A Matter compatible Aqara hub is required), Apple HomeKit, Alexa, IFTTT, and the Aqara Home app. This broad compatibility allows for easy integration into diverse smart home setups and usage in smart home automation
•[Dry Contact Mode] The Aqara Dual Relay Module T2 supports dry (or potential-free) contact mode with both pulse and on-off switching, allowing for the integration of a wide variety of electrical devices such as boilers, garage doors, and more into your smart home setup
•[Wireless Switch Mode & Motor Control Interlock] The T2 provides easy and secure control of tubular motors and can also function as a roller shade switch (percentage control not supported; supports basic up/stop/down control). Utilizing the Wireless Switch Mode, the T2 can convert an existing wall switch into a scene controller without requiring any wiring changes. For example, a button can be assigned to arm your wired doorbell or security system, enabling the integration of other wired sensors into your smart automations (AC only)
•[Energy Saving & Power-off Memory] With advanced energy monitoring, the T2 helps maintain optimal control over energy consumption (Note: The energy monitoring feature is only available in wet contact mode). Leveraging the Zigbee protocol, the T2 features significantly lower idle power consumption compared to Wi-Fi relays, leading to reduced energy costs. Additionally, equipped with a power-off memory function, the T2 retains its last state even after power interruptions
•[Safety and Installation Flexibility] The T2 supports overheat protection, overload protection, and a customizable power limit that automatically shuts off the device if consumption exceeds specified settings, directly safeguarding your home and energy footprint. Additionally, it can be installed near a light, behind a switch* or wall outlet, and includes a DIN rail mount. (*Note: The T2 dimensions: 1.80 × 1.89 × 0.95 inches)

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$34.99

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