The WGA-670B series is compact, low-cost instrumentation amplifiers enabling direct reading of physical variables such as load through high-speed sampling of signals from a strain gage transducer. All operations can be performed with front-panel keys. While all models in this series provide high/low limit comparator, hold function and D-A converted seignal output, models with additional BCD or RS-232C output are available. The high-speed sampling capability makes the WGA-670B series suitable for measurement and control of quickly changing variables initiated by press-fitting and pressing.