The Shelly Flood Gen 4 data cable, white, 2 m, extendable up to 150 m, full-length water detection is a dedicated cable for use with Shelly Flood Gen 4 water detection sensors. The main purpose of this cable is to reliably extend the range of moisture detection throughout a room or building - wherever you want to monitor the possibility of water leakage, e.g. near a washing machine, pipes or in basements.

The special design allows the cable to continuously detect the presence of water along its entire length – not just at the end connection. This allows for the safe monitoring of larger areas or pipes, as each part of the cable actively acts as a sensor. The product is particularly useful in households where you want to detect water leaks early, even in less accessible or stretched places.

The cable is 2 meters long, but can be extended up to 150 meters with specially adapted extensions if necessary. The material and functional consistency ensure that the detection remains equally accurate along the entire length, which is essential for reliable use. The cable can be installed along walls, on the floor or around installations without reducing the detection sensitivity.

Due to its flexibility and expandability, the cable is suitable for various user needs - from standard domestic to more demanding applications, where early detection of water leaks in large facilities or more complex installations is key.

Key product features

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The cable is specifically designed for use with the Shelly Flood Gen 4 sensor, allowing water to be detected along its entire length – in practice, this means that no section is “inactive”. This feature is essential if you want to monitor longer pipelines, floor edges or other potential critical points where water can leak.

The basic cable length allows for flexible installation in almost any household or commercial space. When installing, you can run the cable under or along the edge of the floor, around appliances, or in tight spaces where a traditional sensor would be less effective.

The ability to extend up to 150 meters with additional compatible extensions is key for more demanding installations in larger facilities where monitoring is required in different parts of the building. Connecting a single cable is simple and adapted for quick assembly without special tools, which further facilitates installation.

The basic technical design ensures that the cable does not lose functionality during use, regardless of the stretched length or installation path configuration. In practice, this means that the user can count on reliable operation throughout the entire intended detection range.

It is important to know

When choosing a data cable, it is crucial to understand the actual length, extension options, and water detection along the entire length. Before purchasing, consider what type of connection and length you really need, and whether the detection feature is suitable for your application.

• The cable is basically 2 meters long, and the ability to extend up to 150 meters requires additional extension and is not guaranteed “out-of-the-box”.
• Comprehensive water detection is particularly useful where you need to alert you when liquid comes into contact with any part of the cable – but you should first check the actual compatibility with your device or system.
• The cable is intended for a very specific use and is not universal for data transfer or charging general devices; check if you really need water detection functionality before choosing.
• There is only one cable in the package, which means that you need to order an additional cable if you want to cover multiple locations or have a spare cable.

Source of editorial recommendations: general verifiable guidelines for product selection.

In practice

🟢 Moisture detection by length

The cable is designed to trigger an alarm upon contact with water anywhere along its length, making it very suitable for protection against waterlogging in a room or near pipes.

🟡 Use over longer distances

Despite the declared possibility of extending up to 150 meters, only a short cable is included; for use over longer distances, you will need to purchase additional modules or extensions.

🔴 Classic data transfer or charging

The cable is not intended for classic data transfer or charging electronic devices, so it is not a suitable choice for these purposes.

Answers to frequently asked questions

Does this cable also work as a classic USB data cable?

No, the cable is primarily intended for water detection and is not intended for standard data transfer or charging.

Can I use the cable at any length up to 150 m?

You basically receive a 2 m cable; extension up to 150 m is possible, but this requires the purchase of extension cables or additional modules.

Does water detection work along the entire stretched length?

Yes, when the cable is properly installed and extended, it allows water contact detection along its entire length, including the supplemented segments.

Are there multiple cables in the kit?

No, the kit comes with a single cable. If you want to protect multiple locations, you will need multiple cables.

Description updated: August 2026

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