The document summarizes the specifications of three digital counting bench scales. It lists their capacities ranging from 30kg to 600kg, platform sizes from 350x450mm to 600x800mm, a 20mm LCD display with green backlight, rechargeable battery operation up to 90 hours, auto unit weight update and accumulation counting alarm. It also provides additional details on temperature operation, ADC accuracy, housing material, internal counts, divisions, keypad, power source, and optional RS232 interface and printer/computer connectivity.