OXYTRANS TR - O₂ Measurement (optical; in-line) OXYTRANS M - O₂ Measurement (optical; portable) CARBOTEC TR-PT - CO₂ Measurement (pressure-temperature) CARBOTEC NIR - CO₂ Measurement (optical) RHOTEC L - Density Measurement in the Laboratory Rhotec - Measurement of Density & Concentration Combitec - Concentration Measurement (3 Components) Sonatec - Measurement of Sound & Concentration