Product Description：
Soil moisture sensor, also known as soil moisture sensor, is composed of stainless steel probe and waterproof probe. It can be buried in soil and dam for a long time for fixed-point monitoring and online measurement of surface and deep soil moisture. Used in conjunction with data collector, it can be used as a tool for fixed-point moisture monitoring or mobile measurement (i.e., farmland moisture detector). Note: The sensor is generally encapsulated in PVC shell and epoxy resin.
Measurement parameters：
1. Range: 0~100%;
2. Unit: 100% (m3/m3);
3. Output signal: 0~2V (voltage type) 4~20mA (current type);
4. Measurement accuracy: ±3%;
5. Interchangeability accuracy: < 3%;
6. Repeated measurement error: < 1%;
7. Parameter type: Soil relative content;
8. Measurement principle: Frequency domain (FDR)
Hardware Parameters:
1. Working voltage: 5~12V (voltage type, typical value 9V) 11~24V (current type, typical value 12V);
2. Static current: about 30mA;
3. Working frequency: 100MHZ;
4. Response time: < 1 second;
5. Measurement stabilization time: 2 seconds;
6. Working temperature range: -30℃～70℃;
7. Measurement area: 95% of the influence is within a cylinder with a diameter of 7cm and a height of 7cm centered on the central probe.
Physical parameters:
1. Probe length: 7cm;
2. Probe diameter: 3mm;
3. Probe material: stainless steel (anti-electrolysis);
4. Sealing material: epoxy resin (black flame retardant);
5. Cable length: standard 2 meters (three-core shielded cable)
Features:
1. Cured with green flame-retardant epoxy resin, completely waterproof, and can withstand strong external impact;
2. The surface is polished, beautiful and elegant, and anti-static packaging bags are used for safer storage;
3. The steel needle is made of high-quality materials, can withstand long-term electrolysis, and can withstand acid and alkali corrosion in the soil;
4. High measurement accuracy, reliable performance, less affected by soil salt content, and can adapt to various soil types;
5. It has three-way protection functions for power lines, ground lines, and signal lines, which can protect against damage caused by reverse connection, short circuit, etc.
Scope of application:
It is suitable for scientific experiments, water-saving irrigation, greenhouses, flowers and vegetables, grasslands, soil rapid testing, plant cultivation, sewage treatment and measurement of water content of various particles.
Operation Notes:
1.Before measuring, soil with uniform density should be selected as the object to be measured;
2. Do not insert the sensor probe into hard soil blocks to prevent the probe from being damaged;
3.Do not directly pull the cable to move the sensor out of the soil, and hold the epoxy resin outer packaging of the measured soil with your hand;
4. After using the soil moisture sensor, use a brush to remove the dust on the probe, and wipe the probe dry with a soft cloth to keep the humidity probe clean and increase its service life
