SINOSO ISM miniature soil wall meter is a soil moisture sensor based on the advanced frequency domain reflection (FDR) measurement principle, which can measure the moisture content and soil temperature of the soil surface with high speed and accuracy. SINOSO ISM Miniature soil cultivation instrument uses low power consumption and high performance microprocessor, and uses four No.7 battery power supply and wireless communication modules, without external wiring. With its unique characteristics of accuracy, practicability, convenience and durability, it is mainly suitable for agricultural production and other soil moisture monitoring.