A process indicator is used to monitor a wide range of industrial parameters by receiving signals from sensors and transmitters and displaying accurate real-time values. A digital process indicator is commonly installed in control panels to ensure continuous visibility of critical operating conditions across manufacturing and automation systems. The most common industrial parameters monitored using a process indicator include: Temperature – Measured using RTD or thermocouple sensors in applications such as furnaces, boilers, ovens, and reactors. Pressure – Monitored in pipelines, hydraulic systems, compressors, and process vessels. Flow – Used to track liquid or gas flow rates in chemical plants, water treatment systems, and production lines. Level – Measures tank or reservoir levels in storage and processing units. Voltage and Current – Electrical parameters monitored in power panels and distribution systems. Humidity – Used in HVAC systems, clean rooms, and controlled environments. pH and Conductivity – Common in water treatment, pharmaceutical, and chemical industries. Speed (RPM)—Measured in motors, conveyors, and rotating machinery.