TFA Mould Radar Hygrometer, fully digital thermo-hygrometer, the innovative graphic of the thermo-hygrometer shows the measured humidity values of the last 24 hours on a novel radar screen, 24-hour radar detects risk of mould (1% to 99%), display of indoor temperature (-10°C to +60°C), dew point, max. / min. values function, alarm functions, 98 x 23 x 98mm, weight approx. 87g, comes with 2x 1,5V AAA batteries.