SEM225 series soil sensor is a high-precision and sensitive sensor for online measuring soil humidity / temperature / conductivity(EC) / PH / NPK. Compared with the original high-precision sensor of Germany and calibrated by the actual drying and weighing method of soil, it has high precision, fast response and stable output.
SEM225 series soil sensor is a high-precision and sensitive sensor for online measuring soil humidity / temperature / conductivity(EC) / PH / NPK. Compared with the original high-precision sensor of Germany and calibrated by the actual drying and weighing method of soil, it has high precision, fast response and stable output.
Agricultural sensor series products are widely used in agricultural greenhouses, flower cultivation, pasture grassland and other occasions.
PARAMETERS | Soil humidity/temperature | Soil EC | Soil PH | Soil NPK |
Range | H:0%-100% | 0-20000us/cm | 3~9PH | 0~1999mg/kg |
Accuracy | H:±3%(5%~95%,25℃) | ±3% | ±0.3PH | ±2%F.S |
Power supply | 5~30V DC | 5~30V DC | 5~30V DC | 5~30V DC |
Long-term stability | H: ≤1%/year | ≤1%/year | ≤5%/year | ≤5%/year |
Working temperature | -40℃~+80℃ | -40 ~ +80℃ | -20 ~+60℃ | 5 ~ +45℃ |
Working humidity | 0%-100% | 0%-100% | 5%-95% | 5%-95% |
Response time | ≤1s | ≤1s | ≤10s | ≤1s |
Signal output | 4~20mA,0~5V,RS485 | 4~20mA,0~5V,RS485 | 4~20mA,0~5V,RS485 | 4~20mA,0~5V,RS485 |
Resolution | H: 0.1% | 1us/cm | 0.1 | 1mg/kg(mg/l) |
Protection | IP68 | IP68 | IP68 | IP68 |
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