Live nowPrime Day 2026October 6 to 7, 2026Starts in07d18h21m42sSee the deals
Water Leak Sensors · Head to head

Aeotec Water Sensor 7 Pro vs Tapo T300

Full Smart Water Leak Sensors comparison in 2026

Updated September 2026
Data from Amazon and official Aeotec and TP-Link sites.
2026 verdict
An included probe cable is the Aeotec Water Sensor 7 Pro's best card, but a louder alarm and a tougher seal still make the Tapo T300 the stronger buy of this pair, arriving cheaper and better rated too.
Tapo T300
Winner
Tapo T300
$16.99$19.9915% OFF
Buy on Amazon USACheck price
It brings a 90 dB on-device siren with alert light the Aeotec has no answer for, plus Google Home support and quick pairing inside the Tapo app. The Aeotec Water Sensor 7 Pro pushes back on depth: it supports more connectivity and sensing, folding in a temperature sensor with freeze alerts and open Z-Wave integration to SmartThings and Home Assistant, plus a bundled probe cable, where the Tapo is leak-only and tied to a Tapo Hub over its Sub-1GHz radio. Both need a hub. Choose the Tapo T300 for a cheaper, higher-rated, waterproof sensor with a loud alarm in a Tapo setup; pick the Aeotec Water Sensor 7 Pro for freeze and temperature monitoring and a sensor cable on Z-Wave.
vs
Price alerts

Water Leak Sensor prices change while you decide

We check the price of every Water Leak Sensor in the catalog daily and email you the drops, whichever one you pick.

Smart home deals and news, straight to your inbox

Price drops, new releases and the smart home news worth knowing.

No spam. Unsubscribe in one click.

Your subscription could not be saved. Please try again.
Please enter a valid email address.
Your subscription has been successful.
FeatureAeotec Water Sensor 7 ProTapo T300Winner
Price$29.99$16.99Tapo T300
Rating4.14.6Tapo T300
Weather ResistanceIP20IP67Tapo T300
SensorsWater Leak, TemperatureWater LeakAeotec Water Sensor 7 Pro
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Low Battery AlertsAeotec Water Sensor 7 Pro
On Device Alert SoundNOYESTapo T300
On Device Alert LightNOYESTapo T300
Warranty1 year1 yearTie
Battery Life3 years3 yearsTie
ConnectivityZ-WaveOtherTie
IntegrationsSamsung SmartThings, Home AssistantGoogle Home, Home AssistantTie

What the differences mean

Local alarm

The Tapo T300 sounds a 90 dB alarm and lights up when it senses water; the Aeotec Water Sensor 7 Pro has no on-device alarm or light at all, so any local warning has to come from your hub or app.

Sensor cable

The Aeotec Water Sensor 7 Pro ships with a probe cable that reaches under a water heater or into a sump pit; the Tapo T300 has no cable and only detects water at the unit itself.

Freeze and temperature sensing

Only the Aeotec Water Sensor 7 Pro reads temperature and sends freeze-temperature alerts; the Tapo T300 is dedicated to leak detection alone.

Weather sealing

The Tapo T300 carries an IP67 rating; the Aeotec Water Sensor 7 Pro is IP20, meant to sit near a leak rather than survive direct water contact itself.

Which one to buy if

Winner
TP-Link

Tapo T300

15% OFF
$16.99
$19.99
Buy on Amazon USACheck price
  • + Price: $16.99
  • + Rating: 4.6
  • + Weather Resistance: IP67
  • - Sensors: Water Leak vs Water Leak, Temperature
  • - Alerts: Water Leak Alerts, Low Battery Alerts vs Water Leak Alerts, Temperature Alerts, Freeze Temperature Alerts

What owners say

Owners of both sensors describe the core detection working as promised. Tapo T300 owners say the loud 90 dB alarm and light are what actually gets noticed around the house, and several credit it with catching a leak at a sink or washing machine early. Aeotec Water Sensor 7 Pro owners praise the sensitivity of its probe-and-cable design for reaching tight spots like a water heater or a sump pit, and several set up automations that shut off a smart plug the moment a leak fires. Tapo T300 owners are the ones who get tripped up by the hub requirement itself, a detail a few say the listing does not make obvious. Aeotec Water Sensor 7 Pro owners mention a fiddly initial pairing on some hubs, needing a factory reset before the sensor is recognized, and a few long-term owners report the probe corroding after months in a consistently wet spot.

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.

  • Aeotec Water Sensor 7 Pro
  • Tapo T300

Loading price history...

Frequently Asked Questions

Which is better overall: Aeotec Water Sensor 7 Pro or Tapo T300?

The Tapo T300 wins overall on price, a higher rating, IP67 waterproofing, and a 90 dB onboard alarm with Google Home support. The Aeotec Water Sensor 7 Pro is better for its temperature and freeze alerts and open Z-Wave integration.

What is the biggest difference between the Tapo T300 and the Aeotec Water Sensor 7 Pro?

Local alerting versus sensing depth. The Tapo T300 adds an IP67 body and a 90 dB siren, while the Aeotec Water Sensor 7 Pro adds temperature and freeze alerts, a sensor cable, and open SmartThings and Home Assistant integration, with no alarm of its own.

Do both sensors need a hub?

Yes. The Tapo T300 connects to a Tapo Hub over Sub-1GHz, and the Aeotec Water Sensor 7 Pro needs a Z-Wave hub such as SmartThings or Home Assistant. Neither works standalone.

Which one also monitors temperature?

Only the Aeotec Water Sensor 7 Pro does, with a temperature sensor and freeze alerts. The Tapo T300 is dedicated to leak detection with no temperature sensing.

Who should buy the Tapo T300?

Buy it if you use Tapo or Kasa devices and want an affordable, waterproof, well-rated leak sensor with a loud alarm and Google Home alerts.

Who should buy the Aeotec Water Sensor 7 Pro?

Choose it if you run a Z-Wave hub and want freeze and temperature alerts plus an included sensor cable alongside leak detection.

Full comparison table

Compare all 33 Water Leak Sensors side by side

You are looking at two of them. The full table lines up all Water Leak Sensors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.

  • 33 Water Leak Sensors
  • 36 specs compared
  • 33 filters
Open the full comparison
More Water Leak Sensors

Top Water Leak Sensors to compare next

33 water leak sensors from 22 brands compared: Aqara, Aeotec, Shelly, Govee and more. Probe types, battery life, alarm volume and protocols.

All Water Leak Sensors
Aeotec

More Aeotec products

A sharper look at other Aeotec products worth comparing.

Explore Aeotec
TP-Link

More TP-Link products

A sharper look at other TP-Link products worth comparing.

Explore TP-Link
Independent · Not sponsoredBrands never pay for placement or rankings. Affiliate commissions never influence our comparisons.
© 2026 Smart Home Compared
Search