The Hygrotherm Thermo Hygrometer is what your need. “Air humidity” affects our environment and mould is the dreaded word. Mould destroys materials and makes humans sick but can be prevented if relative humidity stays within a safe range. Display shows relative humidity, temperature time and min/max values. Min/Max memory can be reset at any time. The THERMO-HYGROMETER TH has a built-in tilt stand, a wall mounting bracket and has a wide enough range (20-95%) for tempered climates.