Aqara Water Leak Sensor T1 vs Flume 2 Smart Water Monitor

The Aqara Water Leak Sensor T1 wins overall, with a higher owner rating and by far the broadest integrations, since an Aqara Hub bridges it to Alexa, Google Home, Apple HomeKit, Samsung SmartThings and Matter alongside a direct Home Assistant connection. The Flume 2 Smart Water Monitor answers with connectivity built for a different job, watching the whole house's water use instead of one fixed spot.

They detect leaks in fundamentally different ways. The Aqara Water Leak Sensor T1 is a small point sensor that only reacts to water touching its own contacts, so placement matters. The Flume 2 Smart Water Monitor instead straps onto the home's existing water meter and reads total flow, so it catches leaks anywhere on the property, even ones that never reach a floor.

The Aqara Water Leak Sensor T1 does. Through an Aqara Hub it reaches Alexa, Google Home, Apple HomeKit, Samsung SmartThings and Matter, on top of a native Home Assistant integration. The Flume 2 Smart Water Monitor connects only to Alexa, Google Home and Home Assistant.

About two years on a single CR2032 cell under normal use. The Flume 2 Smart Water Monitor uses a proprietary lithium battery pack in its meter sensor instead, with no official runtime published.

Buy it if you want an affordable, IP67-rated point sensor for a specific risk spot like under a sink or a washing machine, and want the option to reach almost any smart home platform through an Aqara Hub.

Choose it if the priority is catching leaks anywhere on the property rather than at one fixture, including slow leaks and irrigation breaks that a floor-level puck sensor would never detect.