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Water Leak Sensors · Head to head

Aqara Water Leak Sensor T1 vs Tapo T300

Full Smart Water Leak Sensors comparison in 2026

Updated September 2026
Data from Amazon and official Aqara and TP-Link sites.
2026 verdict
The Tapo T300 is the smarter buy in this water leak sensor pairing, backed by a lower price, a higher owner rating, longer battery life, and both an on-device alert sound and light that the Aqara Water Leak Sensor T1 lacks entirely.
Tapo T300
Winner
Tapo T300
$16.99$19.9915% OFF
The Aqara Water Leak Sensor T1 fights back with far deeper ecosystem reach, since an Aqara Hub bridges it to Google Home, Apple HomeKit and Matter, plus IFTTT and Home Assistant. Both are hub-dependent sensors that skip direct Wi-Fi in favor of a low-power radio to their respective base stations. Buyers who want a loud local alarm and a better-reviewed unit should lean Tapo T300; buyers already deep in Aqara's ecosystem or chasing HomeKit and Matter support should stick with the Aqara Water Leak Sensor T1.
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FeatureAqara Water Leak Sensor T1Tapo T300Winner
PriceC$36.99$16.99Tapo T300
Rating4.44.6Tapo T300
Battery Life2 years3 yearsTapo T300
IntegrationsGoogle Home, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Home AssistantAqara Water Leak Sensor T1
On Device Alert SoundNOYESTapo T300
On Device Alert LightNOYESTapo T300
Warranty1 year1 yearTie
Weather ResistanceIP67IP67Tie
ConnectivityZigbeeOtherTie
SensorsWater LeakWater LeakTie
AlertsWater Leak Alerts, Low Battery AlertsWater Leak Alerts, Low Battery AlertsTie
Winner
15% OFF
$16.99
$19.99
  • + Price: $16.99
  • + Rating: 4.6
  • + Battery Life: 3 years
  • - Integrations: Google Home, Home Assistant vs Google Home, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • Aqara Water Leak Sensor T1
  • Tapo T300

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Frequently Asked Questions

Which is better overall: Aqara Water Leak Sensor T1 or Tapo T300?

The Tapo T300 comes out ahead here, winning on price, rating, battery life, and its on-device alarm sound and light. The Aqara Water Leak Sensor T1 counters with much wider smart home integrations through its hub.

What is the biggest difference between the Tapo T300 and the Aqara Water Leak Sensor T1?

It comes down to alerting versus ecosystem reach. The Tapo T300 sounds a 90 dB alarm and flashes a light right on the device, while the Aqara Water Leak Sensor T1 stays silent on-device but connects, through its hub, to Google Home, Apple HomeKit, and Matter.

Does either sensor have a built-in alarm?

Yes, the Tapo T300 does, with a 90 dB on-device siren and a light indicator. The Aqara Water Leak Sensor T1 has neither, relying entirely on its hub and app for notifications.

Which one lasts longer on a battery?

The Tapo T300 is rated for about 3 years on its 2x AAAA batteries, compared to roughly 2 years on the Aqara Water Leak Sensor T1's single CR2032 cell.

Who should buy the Tapo T300?

Buyers who want the better-reviewed, more affordable sensor with a loud local alarm and longer battery life, especially anyone already running Tapo or Kasa devices.

Who should buy the Aqara Water Leak Sensor T1?

Buyers set on Apple HomeKit, Matter, or IFTTT support, since the Aqara Water Leak Sensor T1 reaches those platforms through an Aqara Hub in a way the Tapo T300 cannot.

Full comparison table

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  • 33 Water Leak Sensors
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