feature: ◆ rational design, better function. ◆ electromagnetic gauge transducer approves guarantee for high sensitive produces. ◆ using for super light substance in gauge, units se-lectionpercentage counting. ◆ installed with standard weightcollated in many site. ◆ double range balance has two precision. it was one, but two ranges. ◆ good function, suitable price. ◆ installed with rs232 data interface.