Serial Communication: A 10 pin FRC box header with TTL UART Pins are available for serial communication. RS232 adaptor PCBs as shown below are available for easy interface for connecting to a PC. LED Display: 6 digit Common anode seven segment display. A 16pin FRC box connector is provided on the PCB for this purpose. Apart from segment (weight) display it will also drive a LED that indicates the presence of mains supply. Buzzer annunciation: The buzzer is used for multiple annunciations. A few are mentioned below... a. Beeps with scrolling banner display. b. Beeps while TARE key is pressed. c. Intermittent & continuous beeps for set-point1 & set-point2 function.