Kleiner weißer Knopf auf dunklem Holztisch, im Hintergrund Lautsprecher.

Immediate alarm if water escapes.

The worry's always there: The cellar fills up due to heavy rain or the washing machine is faulty, causing large amounts of water to escape. That can cause serious damage. With the Homematic IP smart water sensor, you'll feel safe in your smart home. Because if there's a water leak, the sensor alerts you with the integrated loud siren and also via notifications in the app.

Detect water leaks early

Merely dampness and very small amounts of water are reliably detected and indicated.

Three measuring probes detect even small amounts of water. Another probe detects a water level from a height of 1.5 millimetres.

All-round safety and an immediate alarm

The Homematic IP app gives you an overview of everything and you can be sure that everything's as it should be at home.

If there is a water alarm, you are informed immediately in the app via a push message. Movement of or tampering with the water sensor is detected and reported to you. That's done via the smart product's built-in incline sensor.

An individual choice of alarm signals

Choose whether the water sensor should trigger only in case of moisture, only in case of water or in both cases. You can also set the alarm signal individually - both audibly and visually - as well as the alarm duration.

You can conveniently set all the functions in the Homematic IP app.

Alarm throughout the house

Combine the water sensor with a Homematic IP alarm siren (e.g. HmIP-ASIR-2) – the alarm will then also be emitted via the siren.

Ready for use without installation

Simply put the water sensor in place and that's it!

The device detects moisture on different surfaces and, with its spring-mounted measuring probes, also adapts flexibly to sloping floors.

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Our products in a new dimension.

Rotate the product in all directions, zoom in and experience it in three dimensions. This gives you a detailed picture of your favourite products.

Your advantages at a glance

Do you want to live more safely, save money and protect the environment, or simply increase your living comfort? There are many good reasons for a Smart Home. Find out more now!

Your advantages at a glance

Do you want to live more safely, save money and protect the environment, or simply increase your living comfort? There are many good reasons for a Smart Home. Find out more now!

Alarm siren

If someone tries to enter your home without permission, our smart alarm siren will signal this loudly and immediately.

Access point

Conveniently set up your smart home system in just a few steps: You can do this with the Homematic IP access point - your powerful smart home control centre.

05. July 2023

Travel with a safe feeling: How to protect your home with smart home technology

No one there to look after the house during the holidays? No problem, because your Smart Home protects itself: It keeps burglars away and lets you know immediately if something should happen.

Find out more

Homematic IP: Smart living. Simply exciting.

Homematic IP means modern, flexible and secure technology from the European market leader*. Let the advantages of our system win you over, and start living smarter straight away.

Person auf Sofa hält Smartphone mit geöffneter Homematic-IP App, gemütliches Wohnzimmer.

The Homematic IP app

Configure all settings for your smart home in the Homematic IP app, which you can use to control, regulate and monitor your devices at any time. No personal data is collected except for the IP address.

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Always here for you and your queries.

Whether you have a question about a product, something isn’t working as you wanted, you’re looking for a specialist partner, or you simply want to give us feedback: we are always here to help.

FAQs

This is where you’ll find the most important questions and our answers about our smart home solutions.

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Service

Have you purchased a Homematic IP product and now have questions about how it works? Our technical support team will be happy to help you.

Service

Specialist tradespeople

Are you looking for a good specialist tradesperson near you? Simply use the convenient search function here on our website.

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Dealers

You can get Homematic IP products and good advice all over Germany. Find the right dealer near you here.

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Innovations, ideas, impulses: your news

Get first-hand news about the latest innovative smart home solutions.

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Use Cases (field_use_cases)

New Energy Management features for the Homematic IP Home Control Unit

The EEBUS plugin for the Homematic IP Home Control Unit now supports the LPC and LPP functions for automatically limiting power consumption and power feed-in.

11. August 2026

Systematic security: fully integrated Homematic IP camera family now available

The new Homematic IP security cameras are part of a comprehensive smart home ecosystem. With just one app, users have access to all features and can keep an eye on their smart home at all times. Rigorous data protection and secure encryption ensure complete peace of mind.

31. July 2026

Smart home control at the touch of a finger: Homematic IP Glass displays now also available for wireless installations

The high-quality Homematic IP Glass displays are now also available in wireless versions. This means that, for the first time, these versatile touch displays are also available for smart home installations without bus cabling.

22. July 2026

Homematic IP App update: New alarm system available from July 22

Update 3.8.18 adds filters for device search to the free Homematic IP app and will enable the new alarm system starting July 22. The rollout of the update begins today.

15. July 2026