OTEK firmly believes the success of any business is strengthened by its commitment to satisfactory customer relationships. We love to hear from you! We strive to respond to all inquiries in a timely fashion. Send us a note through our contact us page. If you are looking for information regarding our products available for purchase, see our full catalog. All of our products are backed by a lifetime warranty and our full disclosure of our terms and services is available for review. We stand behind all of our bargraph meters and instrumentation.