IP68 Waterproof & Strong: Built with Erosion resistant electrodes and sealed with flame retardant epoxy resin, this Sensors is designed for direct burial in wet soil or long term outdoor use, ideal for greenhouses, farms, and harsh environments High Accuracy Sensors: Features advanced chips for accurate readings: 0.1% resolution ( ±2% accuracy), 0.1 Resolution ( ±0.3 Accuracy), 1mg / kg NPK resolution, and 1us / cm resolution with built in temperature compensation ( 0 50°C Five in Soil Analysis: Integrates content, conductivity (), temperature, NPK levels, and Detections in device, eliminating the need for multiple tools and providing comprehensive soil data for Accuracy agriculture and scientific research Wide Temperature ranges & Portability: Operates in 20°C to +60°C conditions ( chip withstands up to 85°C), compact and lightweight for quick deployment in fields, gardens, labs, and automated agricultural systems RS485 & Profibus Compatibility: Equipped with a robust RS485 interfaces ( Profibus) and 2 meter cable length, enabling seamless integration with industrial controllers, systems, and PCs for real time remote, Manufacturer: FROMCEO