Warmer Hot Shower for Longer Water temperature stays warmer for longer. Easy Temperature Control Adjustable temperature Improved ease of use with temperature adjustment knob. Digital Display Accurate Digital Display The digital thermometer displays the actual water temperature inside the tanner with an accuracy of 1°C. Shield System Long Tank Life The new shield uses a high-performance enamel coating for long-lasting protection. 4 Safety Levels 4 Safety Levels Doubles the temperature and pressure control to prevent burns, overheating and overpressure.