RK500-22 Soil PH Sensor (4-20mA & RS485 outputs)

Soil contains many substances such as inorganic acid, organic acid, alkali and salt, due to the different content of various substances, so the soil shows different ph values.
Usually, the pH in the range of 6.5 - 7.5 soil is called neutral soil.
RK500-22 pH sensors measure pH values and are a good solution without professional calibration instruments, complex operations, units that are expensive and difficult to carry.
They can be used for continuous measurements of soil, waste water pH values, and are suitable for agriculture, sewage treatment plants, chemical industries, printing and dyeing, paper making, pharmacy, electroplating and environmental protection as well as in other fields.