• Data logger with internal memory up to 67.000 readings per measurement function
• Simultaneous recording of air humidity, air temperature and two additional K-type temperature sensors
• Multi-Line LCD display with warning LEDs

• Data logger with internal memory up to 32,000 readings
• Simultaneous recording of air humidity and air temperature
• LCD for measurement values
• Sampling rate of 2 seconds up to 24 hours
• User replaceable lithium battery
• Recording time up to 2 years at 1 Sample/min