IPPINKA Sustee Aquameter, Set of 4, Plant Soil Moisture Sensor (Green, Medium)

Dimensions: 7.09 x 0.39 x 0.31 inches (medium) - Intended for pot sizes of 3.5, 4, 5, and 6. The Sustee Aquameter is a leave-in soil moisture sensor pen that can be left in the soil for continuous monitoring, unlike other moisture meters that need to be taken out after each measure. Set includes four refillable sustee watering sticks - Color: green. Has refillable core; allows for replacement cores to be inserted - Each stick will last for approximately 6-9 months. This soil aqua meter has plant water indicator that changes color depending on soil type - White indicates plant needs watering; blue indicates it's been watered. Ideally utilized in soils that have good water retention properties Moisture meter for house plants Ideal for all kinds of plants and maintenance-free (batteries not needed) Made in Japan - High-quality product Sustee collaborated with Tokyo University of Agriculture to improve the design and function of each stick