Run as standalone ratemeter or configured as complete control and display system, PM500 has two 4–20 mA sensor inputs that can be scaled to any user-selected units. There are various sensor inputs types, but most common are temperature, speed, and position. Because inputs are independent of each other, meter can be programmed to display 2 different processes. Unit can be powered by 115 or 230 Vac and includes 4-digit display switchable between 2 inputs and communicates via Modbus RS-485.