ECO-SMT Moisture sensor

        ECO-SMT moisture sensor is based on dielectric theory and frequency domain measurement technology (FDR), which can accurately measure the volumetric moisture content of soil and other porous media. The sensor has stable performance and good consistency, and has been widely used in the Ministry of Agriculture, the Ministry of Water Resources, the Academy of Agricultural Sciences, Yucheng Station of the Chinese Academy of Sciences, the Chinese Academy of Forestry and many universities in China. After years of application verification in various industries, it has been highly recognized by users.

Advantages and features:

• The measurement is stable and reliable, especially suitable for long-term field monitoring;
• High consistency, small individual discrete difference, interchangeable sensors;
• Low power consumption components, small working current; High sensitivity, rapid response, high data transmission efficiency;
• Output current, voltage, digital signal, can adapt to a variety of working conditions;
• The sensor is small, simple and fast to be buried, and has little disturbance to the soil, basically realizing in-situ measurement;
• Professional grade electronic potting, waterproof, antifreeze, pressure resistance, corrosion resistance;
• Ultra-low temperature tolerance, conventional to -20℃, can be extended to -40℃;
• Widely used in soil moisture monitoring, greenhouse environment monitoring, automatic irrigation control, frozen soil monitoring, roadbed monitoring and other system applications;

Technical parameters:

• Measurement parameters: soil volumetric water content vol%;
• Supply voltage: 5~12VDC;
• Working current: 25mA;
• Measuring range: 0~100% (i.e. 0 to saturation);
• Accuracy: ±3%, ±2% after special calibration;
• Repeatability: ±1%;
• Output signal: 0~1.5VDC or 4 ~ 20mA;
• Probe material: 316L stainless steel; The probe length is 6cm;
• Measurement area: 95% of the influence is in a Φ5x8cm cylinder;
• Sealing: waterproof class IP68, waterproof and moisture-proof;
• Operating temperature: -20~65℃;