Usage Tips: Insert the capacitive sensor into the soil to obtain real-time soil moisture data. With an external screen and a motherboard, you can monitor your plants' needs. Check if your plants are dry and require watering. Applications: Garden plants, moisture detection, intelligent agriculture. Note: Humidity levels correspond to voltage output—lower voltage indicates lower humidity. Confirm readings using a multimeter. Specifications: Operating Voltage: 3.3 ~ 5.5V Output Voltage: 0 ~ 3.0V Interface: PH2.54-3P Size: 98 x 23mm (L x W) Material: ABS Color: Black Package Contents: 1 set x Capacitive Sensor (10PCS) Note: The package includes only the items listed above. Note: Lighting effects and display differences may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3cm.