Sustee Soil Moisture Sensor - Medium (Pots 12–18cm)

Product Description

Water with confidence, every time.

The Medium Sustee Soil Moisture Sensor takes the uncertainty out of watering by measuring moisture exactly where your plants need it most, at the roots. Designed in Japan, this clever little sensor lets you know when it's time to water without relying on guesswork or moisture meters.

Simply insert the Sustee into your potting mix and leave it in place. When the indicator is blue, your plant still has enough moisture. Once it turns white, it's time to water. No batteries, no apps and no fuss.

Perfect for pots between 12–18cm, the Medium Sustee is ideal for many of the most popular indoor plants, helping you keep them healthy, hydrated and thriving.

Why You'll Love It

• Takes the guesswork out of watering.
• Perfect for pots between 12–18cm.
• Reads moisture directly at the root zone.
• Helps prevent overwatering and underwatering.
• Colour-changing indicator is easy to understand.
• No batteries, charging or apps required.
• Reusable with replaceable natural cores.
• Designed in Japan.

The Details

• Brand: Sustee
• Size: Medium
• Recommended Pot Size: 12–18cm
• Indicator: Blue = Moist | White = Time to Water
• Response Time: Approximately 10–20 minutes
• Designed in: Japan
• Power Required: None

Why We Love Sustee

We've tried plenty of ways to check soil moisture over the years, but Sustee has become one of our favourites. It quietly stays in the pot and lets your plant tell you when it's thirsty, simple, reliable and easy to understand.

• Stays in your pot for continuous monitoring.
• Measures moisture at the root zone.
• No batteries or electronics to worry about.
• Clean, discreet design.
• Trusted by plant lovers around the world.
• Helps grow healthier, happier plants.

Good to Know

• Works with most premium potting mixes.
• Not suitable for pure LECA, perlite, pumice, sand or hydroponic systems.
• Replace the natural core every 6–12 months for best performance.
• Suitable for both indoor and outdoor potted plants.

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