GK and GK-M Indicators Features Full tare range Accessible internal rechargeable battery Large backlit LCD display with capacity tracker Battery operation with auto-off to save battery life Parts counting with freely selectable sample sizes Check weighing LED lists to show acceptable limits Automatic accumulation Bi-directional RS232 output for connection to computers and printers Technical Specifications Model GK Non-approved Capacity 0-999999 Readability Selectable Resolution Up to 1:30,000 Repeatability (+/-) 2d Linearity (+/-) 3d EC Type Approved Models: Model GK Approved Capacity 0-999999 Readability Selectable Resolution 1:3000 Website: E-mail:chinaoxy@126.com MSN:oxykm@hotmail.com