General description This pack includes 10 soil moisture meters, each measuring 20 cm in length. These plant water level indicators are designed for easy and convenient use, requiring no batteries or electricity. Simply plug and play to monitor the water level in your flower pots. Technical specifications Length: 20 cm Material: Plastic Measurement allowed error: +/- 1-3 cm Usage This water level meter is ideal for both indoor and outdoor use. It effectively indicates the water level in flower pots, reminding you when to water your plants. The buoy will sink to the bottom when there is no water, and will float when the correct amount of water is present. Other information