Name: multi-channel wireless dynamometer* Model: DL-W-DD* Capacity: 1t-200t * units:kg/lb/n* 1t-5t aluminum/10t-200t alloy steel * standard: III * CE approved * LCD 25mm display with backlight* low battery warning * three standard(lr6aa)battery* one wireless palm indicator control load of 1-5pcs dynamometer(1t-200t) and display each dynamometer value and their sum value, you can choose rs232,and print control indicator. www.hzghscale.comwww.hzgh-scales.com