MS01

The Sonoff MS01 is a capacitive soil moisture sensor designed to monitor moisture levels in soil for plants—indoor or outdoor—helping you automate watering and maintain optimal plant health.

???? Compatibility

• It works specifically with Sonoff smart switches, such as TH10 / TH16, TH Origin, or TH Elite, which support RJ9 sensor ports.
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• Once connected, moisture readings appear in the eWeLink app and can be used to trigger smart actions (like activating a water pump).

Feature Description

Moisture Range: 0–99 % RH (relative humidity) in soil.

Sensor Type: Capacitive, more accurate and durable for wet environments.

Waterproof Rating: IP55 – protects against water jets and dust; suitable for outdoor use

Power: 3.3 V, powered via smart switch interface.

Cable & Extension: Comes with 50 cm cable; supports extensions up to 10 m via RL560 cable.

Build: Dimensions: 130 × 30 × 13 mm; flame-retardant V0 rating.

Voice Assistant Support Compatible with Google Assistant (and Alexa via eWeLink integration).

????️ How It Works

1. Plug-in Sensor: Insert the MS01 into the soil and connect via RJ9 to a compatible Sonoff switch.
2. Monitor Remotely: Moisture levels are accessible through the eWeLink app.
3. Automate Watering: Set thresholds in the app—when the soil dries out, the switch can automatically activate a pump or valve.
4. Durable Design: IP55 enclosure means it withstands rain and typical garden conditions.

✅ Why Choose MS01?

• Enables smart gardening with automated watering responses.
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• Reliable capacitive sensing avoids corrosion and offers stable results.
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• Easily expandable with long cable support.
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• Waterproof and rugged, suitable for outdoor planting areas.
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• Works with voice assistants and common IoT ecosystems.