SANSEL online pH ORP indicator is a rugged and weather-proof panel mount instrument designed for accurate continuous monitoring of acidity and alkalinity in industrial processes. Engineered for stable performance in harsh environments, it supports precise pH and ORP measurement with easy front-panel calibration using standard buffer solutions. Its compact industrial design ensures seamless integration into control panels, making it ideal for water treatment plants, chemical processing units, and manufacturing industries requiring dependable pH control and process safety.