Display: lcd with backlitPower:100-240v(AC) Sensor: Electromagnetic Force Balance Sensor Unit: g/ct Material: Cast aluminum and static resistant ABS, 3 glass wind-resistant doors, stainless steel weighing pan and surrounding areaPreheating time: 180minutesStabilization time: 8sLinearity error: ±0.0003g /±0.003gPreheating temperature:20ƒ±2.5ƒ(0.1mg)/20ƒ±7.5ƒ(0.001g)Calibration: external Interface: RS232 Least weighing = about 50d (if there are special requirements, it can be adjusted by internal parameters)Function: Print, Counting, Tare, Unit conversion, Autocalibration(external cal), Overload IndicationCapacity: 200 g