Weight Scale Indicator is supporting 4-channel vedio,supporting GPRS,CDMA,3G wirless transmission,Accuracy: Grade ... packing scale, charging mixture system,etc.Function&Feature1,Support 4-tips Video-In2,Support Real time Transmission of wire ... anti-cheating function.Technical specificationsAccuracy class: Grade IIIInput sensitivity: 0.4μ V/dUSB2.0 interface4 pcsMeter numberdivision: >6000SD card slot: ...