SEM225 Sentec Soil NPK RS485 sensor analyzer nitrogen phosfor Kalium 3 in 1

SEM225 series soil sensor is a high-precision and sensitive sensor for online measuring soil humidity / soil temperature / soil conductivity(EC) / soil PH / soil 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.

Soil humidity/temperature H:0%-100% / T: -40℃~+80C

Soil NPK 0~1999mg/kg

Accuracy NPK: ±2%F.S

Digital output RS485

Protection level IP68

Power suppy 12~30VDC

Maximum power consumption 1.2 W

Response time ≤1s

Working environment 5%-95% (soil NPK)

Long-term stability ≤5%/year (soil PH+NPK)

Protection level IP68

Sealing material epoxy resin (black flame retardant)

Probe length 70mm 

Probe diameter  3mm