Sustee Aquameter Medium (Green Refillable) - Plant Soil Moisture Sensor - Best for Potted Plants - Probe, Meter, Indicator

Key features

• Senses water at root level, no dirty fingers and damaged roots trying to gauge moist soil by feel - Prevent withering, so your healthy houseplants can clean indoor air to keep you healthy
• Leave the device in the pot to continuously monitor soil humidity and show you when to water - Each stick will last for approximately 6-9 months
• Award-winning product design - No batteries - Environmentally friendly - Creates little waste
• Sustee collaborated with Tokyo University of Agriculture to improve the design and function of each stick
• Size M is best for 4.7 to 7 inch diameter pots. Now even more eco-friendly with a replaceable core; allows for replacement cores to be inserted