MEROSS MST100-EU Smart Irrigation Controller with Wi-Fi

The MEROSS smart irrigation controller is a practical solution for managing your garden watering from anywhere. With support for 2.4 GHz Wi-Fi, voice control and the ability to expand the system to up to 24 devices, you have complete control over watering different zones. The robust design with brass fittings ensures durability and resistance to corrosion, while water consumption monitoring and weather-based automation features help reduce costs and resource consumption.

Durable construction and safe use

The use of high-quality brass inlet and outlet connections effectively protects the device from corrosion and rust, ensuring a long service life and leak-free installation. The controller also allows manual watering with a physical “One Tap” button, which is convenient in situations that require immediate action. The built-in auto-shutoff function after 15 minutes prevents excessive water consumption during manual watering, and the 24/7 operation option provides complete flexibility.

Remote control and smart home integration

Thanks to its compatibility with Amazon Alexa, Siri and Google Home, you can control your watering with simple voice commands without having to reach for your phone. The Meross app allows you to remotely control the system from anywhere, which is especially useful when traveling. The device operates on a 2.4 GHz Wi-Fi network and works with the Meross MSH400 hub, allowing you to create large-scale irrigation systems.

Smart water saving and cost control

The controller automatically adjusts the watering schedule to weather conditions and skips cycles during rain, frost or strong winds. The water usage monitoring function displays data on a daily, weekly, monthly and annual basis, making it easy to analyze and optimize watering. In addition, users can track estimated costs, allowing for better budget management and reducing unnecessary expenses.

Flexible schedule and multi-zone operation

The ability to create customized irrigation schedules and record events in the app gives you complete control over the system's operation. This solution works great for larger gardens and properties with multiple zones, such as lawns, flower beds or pools. The system's flexibility allows it to be adapted to different needs, regardless of the size of the space.

Warranty: 12 months

The text is machine translated.

It is important to know

When choosing a smart irrigation controller, it is crucial to ask yourself whether you need remote control and schedule adjustments via Wi-Fi, or whether a traditional timer will suffice. Before purchasing, carefully evaluate the compatibility options with your existing irrigation system and consider the practicality of installation in relation to the available infrastructure in your garden.

• Wi-Fi allows for easy remote control via an app, but also means greater reliance on a reliable home network; check signal coverage at the installation site.
• The product is suitable for users who want a flexible and automated watering schedule without constant presence - the ability to control from your phone will be especially useful if you are often away from home.
• If you are managing a smaller area or looking for basic automation, consider whether you really need all the advanced features; sometimes a simpler controller is sufficient for basic needs.
• Long-term use brings advantages, especially where the power supply is properly regulated and where upgrading with additional equipment or sensors makes sense given the complexity of your irrigation system.

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

In practice

🟢 Automation of watering a small garden

The product, with basic programming and Wi-Fi connectivity, allows for easy automation of watering of smaller green areas, without daily manual activation.

🟢 Remote control and schedule change

Wi-Fi connectivity allows you to remotely change schedules and control them right from your phone - especially convenient if you don't have time or are often away.

🟡 Upgrading the system with sensors

The system allows for upgrades, but it is recommended that you check the compatibility and practical importance of the upgrades for your type of irrigation system before choosing accessories.

🟡 Use in areas with poor Wi-Fi signal

If the Wi-Fi signal at the installation site is weak or unstable, remote control functionality may be limited - check the signal before installation.

🔴 Complex multi-zone automation needs

For more complex irrigation systems with multiple zones or integration of advanced sensors, this model may not offer all the necessary features.

Answers to frequently asked questions

Can I operate the controller even when I am not at home?

Yes, thanks to Wi-Fi connectivity, you can fully control it and change schedules via the app anywhere you have internet access.

Is it suitable for every irrigation system?

The controller is designed for general automation, but we recommend that you check compatibility with your current system specifications before installation.

What happens if the Wi-Fi connection fails for a short time?

A temporary loss of Wi-Fi connection means you will not be able to control the system remotely, but any schedules you have already set will continue to work.

Can I upgrade the system later with a rain or humidity sensor?

Upgrades are possible, but check which accessories and sensors are compatible with this model.

Description updated: September 2026

Why buy from ENAA?

• We achieve the shortest delivery times on average – more than 95% of orders are delivered the next working day.
• The descriptions are designed neutrally, with clear summaries of benefits and functionality, making it easier for you to decide for yourself.