Soil Tension sensor is a solid state electrical resistance sensing device that is used to measure soil water tension. As the tension changes with water content the resistance changes as well. That resistance can be measured using the soil Sensor. The sensor consists of a pair of highly corrosion resistant electrodes that are embedded within a granular matrix. A current is applied to the Sensor to obtain a resistance value. This sensor is designed to be a permanent sensor, placed in the soil to be monitored and â??read as often as necessary with a portable or stationary device. Internally installed gypsum provides some buffering for the effect of salinity levels normally found in irrigated agricultural crops and landscapes.
This Soil Moisture sensor is a FDR (frequency domain reflectometry) based sensor that is used to measure Soil volumetric water content (VWC) and temperature. The sensor consists of highly corrosion resistant electrodes. This sensor is designed to be used for portable as well permanent installations placed in the soil.
This ms10 soil moisture & temperature sensor is provided with high accurate and high sensitive. By measuring the dielectric constant of the reaction of soil, soil direct stable real moisture content.This ms10 soil moisture & temperature sensor can measure the volume of soil moisture.The soil moisture measurement method is in line with international standards at present.Apply to the soil moisture monitoring, scientific experiment, water-saving irrigation, greenhouse vegetables, flowers, grass, soil, plant cultivation, measured speed of sewage treatment, grain storage, greenhouse control, precision agriculture, at the same time in the measurement of water, weather and particulate matter content.
, high measuring accuracy, fast response, good interchangeability
, good sealing performance, corrosion resistance, long buried in soil using
, the flame retardant epoxy resin curing, completely waterproof, can withstand the strong external shocks
, needle using quality materials, can withstand long-term electrolysis, can withstand the corrosion of acid and alkali in the soil
, high measuring precision, reliable performance, the effects of soil salt content is small, suitable for all kinds of soil
, having power reverse protection
Technical parameter
The signal output typeoutput voltage 0-2v
Output impedance
About MT-10
We designed the MT-10 to measure the water content, electrical conductivity, and temperature of soil. The MT-10 uses an oscillator running at 70 MHz to measure the dielectric permittivity of soil to determine the water content. A thermistor in thermal contact with the sensor prongs provides the soil temperature. The Polyurethane coating on the MT-10 circuit board protects the components from water damage and gives the sensor a longer life span.
2.1 Specifications
Volumetric Water Content
Range: 0 (air) to 100 (water)
Temperature
Range: -40 to 80
Resolution: 0.01
Accuracy:±0.5
General
Dimensions: 10 cm (1) x 3.2 cm (w) x 0.7 cm (d)
Prong Length: 5.2 cm
Dielectric Measurement Frequency: 70 MHz
Measurement Time: 150 ms (milliseconds)
Power requirements: 3.6 to 30 VDC, 0.3mA quiescent, 10mA during 150 ms measurement
Output: SDI-12 / RS485 MODBUS RTU
Operating Temperature: -40 to 80
Connector Types: 3.5 mm (stereo) plug or stripped & tinned lead wires (Pigtail)
Cable Length: 5 m standard; Maximum 75 m. Please contact if you need longer cable lengths.
PHYSICAL CHARACTERISTICS
SENSOR IMAGE
SENSOR NAMEMT10
DIMENSIONS10 cm X 3.2 cm
CABLE LENGTH5 meters
The MS20 is a high precision and high sensitivity of soil moisture & temperature sensors. By measuring the dielectric constant of the soil, it shows stable real moisture content directly. The MS20 can measure the volume of soil moisture. The FDR soil moisture measurement method is in line with present international standards. Apply to the soil moisture monitoring, scientific experiment, water-saving irrigation, greenhouse vegetables, flowers, grass, fast measure, plant cultivation, greenhouse control, precision agriculture and the other measurement of water, weather or particulate matter content.
Support customer soil type, the user can calibration
Contain moisture & temperature measure. High precision, quick response and good compatibility.
Seal with Fire-retardant Epoxy Resin, IP68 water proofing. Long term usage.
Special treatment of probe material can be against acid and alkali corrosion.
Widely used in many kinds of soil because of the imported advance tech which correct the effect of different salt content.
Multiple protection functions including Power supply, communication, analog output. High reliability.
2 Technical parameter
Technical parameter
Signal output typeRS485 interfaceVoltage outputVoltage output
(Low-voltage)Current output
Output rangeModbus Protocol0-2V
0-5V
0-10V
Customize0-1V
0-2V4-20mA
Customize
Input voltage4.2-30V/DC4.2-30V/DC2.7-16V12-30V/DC
Average working current
Soil NPK Sensor
The soil nitrogen, phosphorus, and potassium three-in-one fertility sensor is suitable for detecting the content of nitrogen, phosphorus, and potassium in the soil, and determining the fertility of the soil by detecting the content of nitrogen, phosphorus, and potassium in the soil, thereby facilitating the systematic assessment of the soil condition. Can be buried in the soil for a long time, resistant to long-term electrolysis, corrosion resistance, vacuum potting, completely waterproof.
FEATURES:
1) Low threshold, few steps, fast measurement, no reagents required, unlimited detection times.
2) High measurement accuracy, fast response speed and good interchangeability.
3) The electrode is made of a specially treated alloy material, which can withstand strong external force and is not easy to be damaged.
4) Completely sealed, resistant to acid and alkali corrosion, can be buried in the soil for long-term dynamic testing.
5) Probe insertion design ensures accurate measurement and reliable performance.
Electrical Wiring
�.Instructions
1.1 Quick test method
Select a suitable measurement location, avoid stones, and ensure that the steel needle does not touch hard objects. Discard the topsoil according to the required measurement depth, and maintain the original tightness of the soil below. Hold the sensor vertically and insert it into the soil. It is not allowed to shake left and right, it is recommended to measure multiple times to find the average value within a small range of one measurement point.
1.2 Buried survey
Vertically dig a pit with a diameter of> 20cm, insert the sensor steel needle horizontally into the pit wall at a predetermined depth, bury the pit tightly, and stabilize it for a period of time, then you can perform continuous measurement for several days, months, or even longer.
1.3 Precautions
1). All steel needles must be inserted into the soil during measurement.
2). Avoid direct sunlight on the sensor, which will cause excessive temperature. Pay attention to lightning protection in the field.
3). Do not bend the steel needle violently, do not pull the sensor lead wire with force, and do not beat or violently hit the sensor.
4). The protection grade of the sensor is IP68, which can soak the sensor in water.
5). Due to the presence of radio frequency electromagnetic radiation in the air, it should not be energized in the air for a long time.
Application
The sensor is widely used in soil nitrogen, phosphorus, potassium detection, precision agriculture, forestry, soil research, geological exploration, plant cultivation and other fields.
This MEC10 soil moisture & EC & temperature sensor is provided with high accurate and high sensitive. It is an important tool to observe and study the occurrence, evolution, improvement and the dynamics water of saline soil. By measuring the dielectric constant of the reaction of soil, soil direct stable real moisture content. This MEC10 sensor can measure the volume of soil moisture. The soil moisture measurement method is in line with international standards at present. Apply to the soil moisture monitoring, scientific experiment, water-saving irrigation, greenhouse vegetables, flowers, grass, soil, plant cultivation, measured speed of sewage treatment, grain storage, greenhouse control, precision agriculture. The sensor has the following characteristics:
Soil moisture content, electrical conductivity and temperature three parameters.
One solution can also be used for fertilizer, and other nutrient solution conductivity matrix.
ï3ïElectrode using special treatment of the alloy material, can withstand a strong external impact, not easy to damage.
ï4ïCompletely sealed, acid and alkali corrosion, can be buried in the soil or directly into the water for long-term dynamic testing.
ï5ïHigh precision, fast response, good compatibility, the probe insert design to ensure accurate measurement, reliable performance.
ï6ïPerfect protection circuit and a variety of signal output interface.
This sensor is used to detect the presence of surface moisture on foliage and calculate the duration of wetness. When moisture is present, the sensor detects an electrical resistance change between the gold-plated elements of the grid. This is displayed by the logger as a value between 0 (dry) and 15 (wet). Sensor Output: Resistance varies from above 3,000,000 ohms when dry to around 1,000 ohms when wet Sensor Range: 0 to 100% of the dew range, frost and freezing conditions will not harm the sensor Response Time: 0 to 100% relative dew within six minutes Output: voltage output (Analog)
