Profile: A-T Instruments Ltd. offers a comprehensive supply, repair and calibration service for all types of instrumentation. Our range of products include pressure gauges, transmitters & switches for hygienic & chemical applications, tank contents & level indicators, panel meters, thermocouple, PT100 probes, data loggers, digital & infrared thermometers, PAT testers, process calibrators, and simulators. We offer a full calibration and certification service for all types of pressure, temperature, mechanical & electrical instruments. We also undertake the on-site certification of pressure & temperature instruments and panel meters.