TFA - Dostmann KlimaLogg Base" Professionel Thermo-Hygrometer With Data Logger Range: Temperature : 0...+50°C / +32...+122°F, H: 1...99% --- Product features : for the control of temperature (precision ± 1°C) and humidity (precision ±3% from 35...75%), indication of dew point, max.-min.-function with time and date of recording, alarm at freely adjustable temperature and humidity values (upper/lower limit), alarm event function, data logger with up to 50,000 measured values, quartz clock, date, time zone ±12 hrs Range: T: 0...+50°C (+32...+122°F), H: 1...99% wall mounting or table standing, 83 x 21 (60) x 107 mm, 82 g, 3x 1,5V AAA batteries not included,