Professional Thermo-hygrometer with data logger

for the control of temperature and humidity, indication of dew point, max.-min.-function, average values, alarm at freely adjustable temperature and humidity values (upper/lower limit), calibrating function, data logger with up to 3,000 measured values, recallable via display or PC RS232 interface, connection of up to 3 wireless outdoor transmitters (37171) optional, battery 1.5 V AAA included. Multi-lingual software for data evaluation on PC and transfer cable included.