Greisinger gfth 200 digital hygrometer thermometer greisinger gfth 200 p the greisinger gfth 200 is a digital hygrometer thermometer with low power consumption and integrated min max value memory this makes it perfectly suitable for long term climate surveillances this universal pocket device is full of features and unprecedented in this price range it is ideal for instant humidity temperature and dew point measurement p p what s in the box br greisinger gfth 200 br battery br use