Matching special ORP electrode, reference electrode and stainless steel hollow rod, which can be directly inserted into the soil;

Dual-channel ORP detection channel, fully meets the standard requirements;

Color touch screen, navigation operation menu;

With automatic temperature compensation function, support manual temperature compensation;

Support 1-point and 2-point calibration;

With reading lock function (automatic reading), the measurement result is the final result, without conversion and calculation;

The data collection time can be set in min;

Support data storage and access, storage capacity is 500 sets

With automatic backlight function and automatic shutdown function;

Built-in rechargeable lithium battery, support external mobile power charging;

IP65 protection level.

Oxidation-reduction potential (ORP/Eh), as a comprehensive indicator of soil environmental conditions, has been used for a long time. It characterizes the relative degree of media oxidation or reduction, and has an important impact on the chemical and biological processes of soil. The nature and important parameters of the process. The TR-901 soil ORP meter is mainly used to test the oxidation-reduction potential of fresh or moist soil in situ on site. It conforms to the standard of "HJ 746-2015 Soil Redox Potential Determination Potentiometric Method".