What is a plant water meter? Your potted plant won't tell you if it needs water, but we can use this plant water meter to find out if it needs water. They are thirsty and can see them anytime. Know the soil moisture content of potted plants to avoid damage to your beautiful plants from under- or over-watering. Suitable size: the pot watering indicator is 20 cm (7.8 inches) long and 12.4 cm (4 .8 inches) in the bottom insert and 5 cm (1.8 inches) in the water gauge. It can be placed in most domestic pond flowers. So don't worry, the length is not enough. Take it into the soil to reflect the water content, and you don't need to go deep into the bottom of the pot. Material great and safe : We are made of high quality plastic that meets safety standards, practical and durable , not easy to break, anti-corrosion and no harm to soil and plants. < p>Simple and easy to use: This plant water level indicator does not require batteries or electricity. The water level meter is easy and convenient