About This Accurate Monitor: Made of high-density solid-state fiber. Visible window from blue to white as soil moisture decreases. One glance tells you if there's a water shortage. Widely Compatible: Dimensions 0.2” x 7.87” (⌀ x H) fit pots up to 2 ft ⌀. Cuttable length to fit small pots sizes. Easy & Durable: 24/7 operation no need for frequent insertion, preventing root damage. Decompose after 12 months of use. Status Warning: Visible window grows moss when excessively wet; turns reddish-brown when soil environment requires attention; and develops white crystals at the tip to signal excessive salt or mineral buildup. Usage Tips: Avoid using in clay soil as it clogs the nano-pores. Trim excess length according to pot height. First use requires a 30-minute reaction time. Simple & Battery-Free: Operates continuously without batteries for reliable accuracy. Perfectly beginner-friendly for monitoring any indoor or outdoor plant.