The IN-RTB controller is the ideal solution for a variety of flow rate and batching applications. This controller, with four relay outputs, has been designed for ease of use, with intuitive, scrolling text prompts that guide you step-by-step through the setup process. The front panel includes two rows of 6-digits and five front-panel buttons, for simple operator interface. The dual display allows you to view total and flow rate simultaneously. Up to four relay outputs, an analogue output and/or an RS485/RS232 serial port can also be added.