SONOFF MS01 Smart Soil Moisture Sensor With RJ9 Adapter

The Sonoff MS01 Smart Soil Moisture Sensor helps you keep plants healthy with real-time soil monitoring. Designed to work with Sonoff TH Elite and TH Origin controllers, this sensor lets you check moisture levels and automate watering based on soil conditions.

It’s perfect for gardens, lawns, indoor plants, and greenhouses. With accurate readings, you’ll know exactly when to water—avoiding overwatering or dry soil. The MS01 connects easily using the RJ9 interface and is fully plug-and-play.

Once connected to a TH device, you can view real-time soil data directly from the Smart Life or eWeLink app. You can also set rules to turn on pumps or valves automatically when the soil gets too dry. This makes it ideal for automated irrigation setups.

The sensor features a corrosion-resistant probe that works well in both outdoor and indoor environments. It’s waterproof, durable, and safe to use in soil for long periods. The included 50cm cable gives you flexible placement, and you can use extension cables to reach deeper into garden beds or planters.

Installation takes just minutes. Plug the sensor into your TH Elite or TH Origin device, place the probe into the soil, and you’re ready to monitor. The data updates in real time, and automation works even if the internet is down.

Whether you’re managing a small home garden or a large greenhouse, the Sonoff MS01 makes plant care easy and efficient. It supports Celsius and Fahrenheit readings and integrates smoothly with your smart home system.

This smart soil moisture sensor helps reduce water waste, improve plant health, and save time. It’s an ideal tool for gardeners, farmers, and plant lovers who want smarter control over irrigation.

Explore more in our Smart Sensors and Smart Switches collections.