The GFTB 200 takes quick-response measurements of air pressure, humidity, temperature and further derived units in computer rooms, museums, galleries, churches, offices, living rooms, warehouses, greenhouses, swimming pools, production areas, refrigeration and air conditioning, construction, building physics, damage assessment, etc. Through the use of highly accurate sensors this device has a notably greater precision than comparable devices. With the additional display options 'dew point temperature Td ', 'wet bulb temperature Twb', 'absolute humidity [