RK520-02 Soil Moisture Sensor, Temperature Probe& EC Sensor

1. Choose a suitable measurement location, avoid rocks, and ensure that the electrode does not touch hard objects such as rocks.

2. Dig open the surface soil according to the required measurement depth, maintain the original tightness of the soil below, firmly grip the sensor body and insert it vertically into the soil. During insertion, do not shake it back, forth, left, or right to ensure close contact with the soil.

Underground measurement method: Dig a pit with a diameter greater than 20 centimeters vertically according to the required depth, and then insert the sensor steel needle horizontally into the pit wall at the predetermined depth. Fill and compact the pit to ensure that the electrode is in close contact with the soil.