Features:      1.  High resolution in 1/30,000 2.  Battery and adaptor in dual mode to avoid power instability 3.  Zero range setting and filter setting for weighing under various condition 4.  LCD display with green backlight 5.  Upper/lower limit weighing alarming function 6.  Accumulation, Accumulation display and Accumulation clear function 7.  Auto printing within OK range 8.  RS-232 as a standard 9.  Relay/RTC/U-KEY connector/Wifi/Ethernet(Optional) 10. Ideal for applications including laboratory, school, jewelry, gold, silver, herbs, quality control or any other use Specifications: Model SKY-W-300 SKY-W-600 SKY-W-1500 SKY-W-3000 Capacity(g) 300 600 1500 3000 Division(g) 0.01/0.005 0.02/0.01 0.05/0.02/0.01 0.1/0.05 Display 6 digits, 14mm digit height, LCD display with green backlight Weighing units Kg, g, ct, lb, oz, GN, pcs Output Interface RS232 Weighing Pan(mm) 145mm×125mm Dimension(mm) 238mm×175mm×77mm Weight 980g Power supply DC Adaptor(9V/400mA)/Rechargeable battery(6V/1.3Ah)         Video of SKY-W do HI/LO/OK weight check with our small version Tower Light.       set HI as 200g, LO as 100g,        green light is on, when the weight is within HI and LO (OK),       red light is on and alarm, when the weight exceed HI,        yellow light is on and alarm, when the weight lower LO.       Details