When you are out on the job, there are no tools more important than the ones you use to test and analyze. The reliability of these tools can be the difference between completing the job or having huge roadblocks to progress. Graybar offers meters and testing equipment in a wide variety of categories depending on the job type. Multi-meters, fiber testing and certification equipment, clamp meters, and thermal imaging cameras make up a few of the categories of product. Voice, data, and video testers, voltage testers, and network testers are included in our product offering.