We are offering twin channel electronic comparator twin channel gauge units with selectable probe combinations of +a, -a, +b, -b, +a +b, +a -b, -a +b, -a -b.inch and metric measuring ranges.red, green and yellow tolerance indication for undersize-ok-oversize condition.data output.comprehensive outputs for further processing.compatible with half-bridge and lvdt type inductive measuring probes.sturdy, ergonomic design, suitable for shopfloor environment .add-on modules available for further processing.