Detailed Product Description25mm height LCD and 21 status indication.230x290mm SST pan6V4ah standard rechargeable battery;provide up to 90 hours of continuous use.(with auto-backlight and selectable time power off )RS232 interface can connect to a PC or printerUnit convertion:kg,g,oz,lbCheck weighing function with Hi Lo Ok and beep alarm .Connect to handfree relay box to get 4 channel setpoints .Capacities from 3kg to 30kgWA300:Max. resolution 1/30000, 19 keys(including function and number keys), 3kgx0.1g, 6kgx0.2g, 15kgx0.5g, 30kgx1gWA600:Max. resolution 1/60000, 19 keys(including function and number keys), 6kgx0.1g, 15kgx0.2g, 30kgx0.5g