Provided by Zhongtian InstrumentMP-406ⅢThe soil moisture analyzer has the following product features:

l Equipped with a large Chinese display interface, providing a user-friendly human-machine interface;

l Using batteries12VRated capacity850mAhThe lithium battery can support the normal operation of the instrument after one charge28Hour, supports in car12Vcharge;

l Handheld instruments have standard featuresRS-232Serial interface, connected to a personal computer, enables downloading data from the handheld instrument with the support of dedicated software provided with the instrument;

l The handheld instrument panel is equipped with a large storage chip that supports high data storage capacity, allowing for one-time storage60000Group measurement data;

l The handheld instrument is equipped with an expandable communication interface, providing users with the option to plug in Bluetooth communication modules, enabling the connection between the handheld instrument and Android smart terminals with Bluetooth communication capabilities. Supported by the application software independently developed by Zhongtian Instrument, the Android intelligent terminal can independently achieve wireless control of handheld instruments, complete data measurement operations independently, and at the same time, the Android intelligent terminal can use its own3GThe wireless data terminal pushes the data stored on the handheld instrument to the designated cloud storage terminal, achieving real-time sharing and centralized processing of big data;

l Handheld instruments support setting for measuring depth and soil texture;

l The handheld instrument supports the input function of user calibration curve and can modify the calibration curve according to the actual soil type of the measurement point;

l The system supports full range（0 ～100 %Soil moisture measurement based on volume percentage;

l The system undergoes strict debugging before leaving the factory to ensure measurement accuracy. In general measurement applications, the calibration curve built into the handheld instrument is used0～ Within the range of saturated soil moisture, the measurement accuracy can reach ± 2%(Volume percentage). In specific measurement applications, if pre calibration is performed on the tested soil, the measurement accuracy can reach ± 1%(Volume percentage);

l The change in soil salinity has limited impact on the measurement accuracy of the system. exist0The measurement accuracy error that may be caused by changes in soil salinity within the range of saturated soil moisture should not exceed ±3.5%(Volume percentage);

l Sensor sensing volume:60mm (long) x30mm (diameter)；

l Wide working environment:0℃ ～ 50℃；

l Wide storage environment:-30℃ ～ 60℃；

l The system adopts high-strengthABSPlastic, as a sealing material, has corrosion resistance, high strength, and waterproof and antifreeze effects;