OM 402PID is a 4-digit universal panel PID controller for maximum performance and ease-of-use. It is based on a fast 24-bit single-chip microcontroller with A/D convertor and can be configured for up to 8 different inputs, easily selectable in the instrument's menu. It also ensures high accuracy, stability and ease of control. In its default configuration the OM 402PID contains 2 control relay outputs and 2 alarm relay outputs. Output value can either be pass-through, constant, or defined by one of the 14 programs.