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Water Leak Sensors · Head to head

Aeotec Water Leak Sensor vs Aeotec Water Sensor 7 Pro

Full Smart Water Leak Sensors comparison in 2026

Updated October 2026
Data from Amazon and official Aeotec site.
2026 verdict
Longer battery life and a probe cable make the Aeotec Water Sensor 7 Pro the better of these two Aeotec leak sensors, as long as your hub speaks Z-Wave rather than Zigbee.
Aeotec Water Sensor 7 Pro
Winner
Aeotec Water Sensor 7 Pro
$29.99$47.9537% OFF
Buy on Amazon USACheck price
It is rated for about 3 years on an ER14250 cell against about 1 year on the CR2 of the Aeotec Water Leak Sensor, and its sensor cable lets the body stay dry while the probe sits in a drip pan or behind a water heater. Otherwise the two match closely: both measure temperature and send freeze alerts, both are IP20, neither has a siren or light, and both work with SmartThings and Home Assistant only. The radio is what really decides it. Choose the Aeotec Water Sensor 7 Pro on a Z-Wave network, and the Aeotec Water Leak Sensor on a Zigbee one.
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FeatureAeotec Water Leak SensorAeotec Water Sensor 7 ProWinner
Price$39.99$29.99Aeotec Water Sensor 7 Pro
Rating4.54.1Aeotec Water Leak Sensor
Battery Life1 year3 yearsAeotec Water Sensor 7 Pro
Warranty1 year1 yearTie
Weather ResistanceIP20IP20Tie
ConnectivityZigbeeZ-WaveTie
IntegrationsSamsung SmartThings, Home AssistantSamsung SmartThings, Home AssistantTie
SensorsWater Leak, TemperatureWater Leak, TemperatureTie
AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsWater Leak Alerts, Temperature Alerts, Freeze Temperature AlertsTie
On Device Alert SoundNONOTie
On Device Alert LightNONOTie

What the differences mean

Radio

The Aeotec Water Leak Sensor is Zigbee and the Aeotec Water Sensor 7 Pro is Z-Wave. They share the brand, not the network, so your hub decides which one can pair.

Probe cable

The Aeotec Water Sensor 7 Pro includes a sensor cable, so the probe reaches under an appliance while the body stays dry. The Aeotec Water Leak Sensor detects water only where it sits.

Battery

About 3 years on an ER14250 for the Aeotec Water Sensor 7 Pro, about 1 year on a CR2 for the Aeotec Water Leak Sensor. Over a few years that is a noticeable difference in upkeep.

What they share

Both measure temperature and send freeze alerts, both are IP20, neither has a siren, and both work with SmartThings and Home Assistant but not Alexa, Google Home, Apple Home or Matter.

Which one to buy if

What owners say

Owners of both Aeotec sensors praise sensitive, fast detection and smooth integration with SmartThings and Home Assistant, and both groups use them to trigger automations such as a shutoff valve or cutting power to a dehumidifier. Aeotec Water Leak Sensor owners single out build quality and quick pairing with a QR code, and complain about a CR2 battery that costs more to replace and occasional Zigbee drops outside those two platforms. Aeotec Water Sensor 7 Pro owners single out the probe cable and a battery nobody has had to think about, but several did not realise it needs a Z-Wave hub, some had to reset and pair it again on hubs like Hubitat, and a few saw the probe corrode in wet placements.

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 Leak Sensor
  • Aeotec Water Sensor 7 Pro

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Frequently Asked Questions

Which is better: Aeotec Water Leak Sensor or Aeotec Water Sensor 7 Pro?

The Aeotec Water Sensor 7 Pro, for its probe cable and roughly three times the battery life, if you run Z-Wave. On a Zigbee hub, the Aeotec Water Leak Sensor is the one that works.

Is the Aeotec Water Sensor 7 Pro Zigbee or Z-Wave?

Z-Wave. The Aeotec Water Sensor 7 Pro needs a Z-Wave hub, while the Aeotec Water Leak Sensor is the Zigbee model.

What is the difference between the Aeotec Water Leak Sensor and the Aeotec Water Sensor 7 Pro?

The Aeotec Water Sensor 7 Pro uses Z-Wave, includes a probe cable and is rated for about 3 years on its battery. The Aeotec Water Leak Sensor uses Zigbee, detects water at the unit and is rated for about 1 year.

Do both Aeotec water sensors warn about freezing?

Yes. The Aeotec Water Leak Sensor and the Aeotec Water Sensor 7 Pro both measure temperature and send freeze alerts.

Who should buy the Aeotec Water Leak Sensor?

SmartThings and Home Assistant users on a Zigbee network who want leak and freeze alerts from a compact sensor.

Who should buy the Aeotec Water Sensor 7 Pro?

Z-Wave households that want to monitor water heaters, sump pumps and pipes with a probe cable and long battery life.

Full comparison table

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