Extech Instruments is a manufacturer and supplier of 15 major product categories of technically advanced, portable meters including multimeters, clamp meters, electrical testers, and environmental meters for the measurement of light, sound, temperature, humidity, airflow, RPMs, and water quality. The company has a strong presence in the electrical, HVACR, construction, manufacturing, plant/MRO, process and automation, environmental, electronics/testing, and field service/maintenance sectors worldwide.