Durable design for daily measurements Contrast-rich and scratch-resistant clear glass LCD display Self-explanatory operation with one clear text line Display of the sensor status at one glance with Sensoface Calibration of up to 3 points with automatic buffer detection (from 10 buffers) Manual calibration by indicating random buffer values Real-time clock and display of the battery charging status Very long operating time of more than 1,000 hours with standard batteries (4 x AA)