Profile: Polar Instruments Europe Ltd. specializes in controlled impedance test and design. We provide GRS500, which is designed to help technicians locate faults on a wide variety of PCBs, right through from legacy systems, up to double sided high density surface mount assemblies with BGA. The GRS employs a precision probing and video system to enable PCB test and fault location using a combination of nodal impedance test and visual comparison with live video against a high resolution "videosection" of a known good board. Especially powerful if you need to repair a large variety of PCBs, the GRS is supplied complete with controller and built in CD R/W drive for test program archiving.