Aeotec Multipurpose Sensor vs Aqara Door and Window Sensor P2

The Aqara Door and Window Sensor P2 wins overall. It is the more affordable option, its CR123A battery is rated around 2 years versus about 1 year for the Aeotec Multipurpose Sensor, and it supports more connectivity and integrations, including no-hub Matter over Thread plus Apple HomeKit. The Aeotec sensor holds a higher owner rating and adds temperature and vibration sensing.

How they connect. The Aqara P2 is a Matter-over-Thread sensor that pairs directly to a Thread border router with no Aqara hub, while the Aeotec Multipurpose Sensor is a Zigbee device that always needs a Zigbee hub. The Aeotec, in return, adds temperature and vibration sensing the contact-only P2 lacks.

The Aqara P2 comes closest. It runs on Matter over Thread and pairs directly to a Thread border router such as an Apple TV 128GB or HomePod, so it needs no dedicated Aqara hub to operate (though firmware updates do). The Aeotec Multipurpose Sensor is Zigbee and always requires a Zigbee hub.

Buy the Aeotec Multipurpose Sensor if you already run a Zigbee hub and want a higher-rated sensor that also reads temperature and detects vibration and tilt, enabling automations like appliance-done alerts. It works with SmartThings, Hubitat and Home Assistant and handles wide, misaligned gaps well.

Buy the Aqara Door and Window Sensor P2 if you want no-hub Matter over Thread, direct HomeKit or Home Assistant pairing, longer battery life and the lower price. It suits Apple Home and Thread-based setups, provided you can tolerate some Thread reliability quirks.