Offering accuracy and repeatability in essential weighing applications in laboratory, industrial and education settings, KERRO PRECISION WEIGHING BALANCE 300GM/0.001G, 400M/0.02G, 600GM/0.002G BL-P6B Series Precision Balances deliver competitive performance at an economical price. Featuring RS232 connectivity for easy communication, and a backlight display and a simple interface for uncomplicated operation, the KERRO BL-P6B/3003/4003-2/6003-2 is perfectly designed for your workplace & laboratory.