The new developed soil moisture temperature EC three-in-one sensor is a soil sensor developed with a new technical scheme, which can measure soil moisture, temperature and conductivity at the same time, and carry out compensation calculation among parameters, eliminating the influence of conductivity on water, temperature on water and temperature on conductivity, can perform compensation operation and accurate evaluation.
This product can be used to measure the moisture content of saline-alkali land, which is not affected by the salt content of soil and can accurately measure the moisture content of soil.
It adopts imported epoxy resin, high quality stainless steel, more resistance to acid and alkali corrosion, steel needle isolation, never electrolysis, with more than 3 years of service life.
With the multi-directional function of power line, ground line and signal line, can prevent the damage caused by reverse connection, wrong connection and so on.Working Voltage: DC2-5V; DC5-24V
Quiescent Current: peak value <30mA,Average<10mA
Response Time: <1s
Measured Stability Time: 2s
Output: Digital RS485/RS232 Modbus
Protection Level: IP68
Working Temperature range: -40ºC~85ºC
Measurement Area: center on the central probe in a cylinder with diameter 7cm and 10cm height
Parameters of the category | Moisture | EC (Conductivity) | Temperature |
Measuring range | 0-100.00% | 0-20000uS/cm (25ºC) (0-20.0EC) | -40.00ºC~85.00ºC |
Unit | V/V %,Volumetric moisture content of soil | uS/cm, mS/cm | ºC centigrade degree |
Resolution | 0.01% | 1 uS/cm | 0.01ºC |
Accuracy | ±3%(0-53%);±5%(>53%) | 2%FS, 2% of the value | Error < 0.3ºC(-10ºC~50ºC)others <0.6ºC |
Swap precision | < 3% | < 2%FS | < 0.3ºC |
Repetition measurement error | < 2% | < 2%FS | < 0.2ºC |
Response time when powered | 1s | 1s | 1s |
Measured stability time | < 2s | < 2s | < 2s |
Measurement principle | Frequency domain (FDR) add temperature and conductivity correction | EC measurement, with temperature compensation | RTD Thermal sensor, plus nonlinear correction |




