Rotronic is a Swiss manufacturer of measurement instruments, established in 1965 and part of the DwyerOmega group (formerly Process Sensing Technologies). It offers instruments for relative humidity, temperature, dew point, CO2, differential pressure and water activity, including probes, transmitters, handheld instruments, data loggers, OEM products and the Rotronic Monitoring System (RMS), a GxP-compliant modular monitoring system. It also provides calibration (ISO 17025), validation, mapping, repair and equipment hire services, serving the pharmaceutical, food, HVAC, meteorology, cleanroom and industrial sectors.