The Extech Instruments Division is a manufacturer and supplier 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. Extech has a strong presence in the electrical, HVACR, construction, manufacturing, plant/MRO, process and automation, environmental, electronics/testing, and field service/maintenance sectors worldwide.