E+E Elektronik

E+E Elektronik is an Austrian sensor technology company founded in 1979 and headquartered in Engerwitzdorf, Upper Austria. Since 1994, the company has been a wholly owned subsidiary of DR. JOHANNES HEIDENHAIN GmbH. E+E Elektronik develops and manufactures sensors, transmitters, handheld meters, data loggers, and calibration systems for humidity, temperature, CO₂, air velocity, dew point, moisture in oil, pressure, differential pressure, and flow measurement. Core technology is built on proprietary thin-film sensor fabrication in its own cleanroom, with specialized coatings for high-humidity and chemically aggressive environments.