Product features: simple and easy to operate. Rugged and reliable design with high impact plastic housing. Accurate reading over wide temperature range. High weighing resolution of 1/2000: precision weighing of 200g x 0.1g. Calibration function: easy and simple to calibrate the scale with external calibration mass for accurate weighing. Multi weighing units: meet any weighing application with weighing units of g, 02. ct and tael. Two way power: use either 4 x AA batteries or the optional AC adapter. Long battery life: continuous operation for 1000 hours using alkaline batteries. Tare function to full weighing capacity: one touch tare using the "RE-ZERO" key enables the user to use a weighing container and still benefit from the full weighing range of the scale. Large LCD display: easy to read 13.5mm LCD display. Large weighing pan: easily weigh large objects on the 130mm diameter weighing pan. Auto power off Function: save battery life with the auto power off function. HL-i automatically shuts down after 5 minutes of disuse. Low battery indication: low battery warning is displayed when the batteries are running low. Overload indication: display indicator for scale overload conditions. Stable indicator: lets you know when the scale is stable and ready to weigh ensuring accurate weighing results. Compact size: small size means it's easy to use anywhere. The scale can also be stored on its side or rear, saving space. Non-linearity: +/-0.2g. Repeatability: 0.1g.