The EJ-303 extends the milligram precision capacity of the EJ series of compact balances from A&D. Backed by the same 5 year warranty, the EJ-303 features a 310 gram capacity with a readability of ±1 mg. This compact balance is great for the classroom, hobbyists and people who need milligram resolution at an affordable price. The EJ series from A&D are known for their speed, stability of reading and day in / day out performance. A&D prides itself on quality and is the reason why they back this up with an industry leading 5 year warranty. Standard features include a large backlight LCD display, parts counting mode, GLP output, accumulation function, automatic external calibration (requires appropriate calibration weight), gravity correction setting, 4 leveling feet, level bubble, drafthield and battery or AC power (included). Available options include an RS-232 or USB interface, and a handy carrying case. Battery Operated (4 AA) Large Easy to Read Backlit LCD Display Standard AC Adaptor GLP Output Comparator Mode Display Available above balance density determination kit Counting mode, percentage weighing mode, specific gravity function Anti-Theft Device Option Carry Case Option Full digital calibration 5 Year Warranty!