Watering Moisture Meter, White Plant Moisture Meter Water Meter Soil Tester 12 cm

No batteries are needed; simply place it in the bowl and it's ready to use. When there is enough water, the indicator light turns blue, and when there is insufficient water, it turns white. The core material is 100% natural fibers, which can be broken down by bacteria in the soil. The standard lifespan of the core is approximately 6 to 9 months in organic growing medium and approximately 9 to 12 months in inorganic growing medium or sphagnum moss. Please allow for a 1-3 cm error due to manual measurement. Thank you for your understanding. Monitors are calibrated differently, so the color of the items shown in the photos may vary slightly from the actual product. Please refer to the actual product.