A soil moisture transmitter is a transmitter that monitors soil. It is constructed of stainless steel probe and waterproof probe, which can be used for long-term burial in the soil. Soil moisture transmitters are widely used in soil and water conservation monitoring, soil hydrology monitoring, precision agricultural production, irrigation and other fields. At present, the principle of dielectric properties of soil moisture transmitters enables fast and non-destructive measurement of soil moisture. Specifically, it can be divided into the FDR principle based on frequency reflection and the TDR principle based on time domain reflection. Based on the principle of frequency reflection FDR, the dielectric constant of the inserted medium is measured by measuring the change in capacitance on the transmitter at a frequency of 100 MHz. Since the dielectric constant of water is very high (80), soil is (3-10). Therefore, when the moisture content in the soil changes, the dielectric constant of the soil also changes considerably. FDR frequency domain soil moisture transmitter has the advantages of simplicity, safety, fast and accurate, fixed-point continuous, automation, less calibration, and low price. Based on the principle of TDR in the time domain, it has strong independence, and the results are basically independent of soil type, density and temperature. Waveforms are reflected on a mismatched transmission line. The waveform at any point on the transmission line is a superposition of the original waveform and the reflected waveform. The response time of the soil moisture transmitter on the TDR principle is about 10-20 seconds, which is suitable for mobile measurement and fixed-point monitoring. But the equipment is more expensive. As a manufacturer of soil moisture transmitters, Xingyi has always maintained a comprehensive advantage in technology, and Xingyi CSF11 soil moisture transmitter and Xingyi CSF15 soil moisture transmitter respectively adopt the above two different working principles to meet the needs of users for different sites. The Astrometer Soil Moisture Transmitter uses digital technology and durable materials to achieve high measurement accuracy and low cost. The moisture content of multiple sample plots and different soil depths can be continuously monitored for a long time. If you have any questions about product consultation, product customization, agency, technical inquiry, quotation, etc., please contact Xingyi: 400-600-4496!