1.Extensive digital screen display with elegant design. 2.Wide power terminal arrangement in solution to any related electrical breakdown issues. 3.Accessible On/OFF function to facilatate operation. 4.Improved navigation keys for quick temperature setting. 5.Provides signal indicators for easy quick temperature setting. 6.With proportional control to stablize heat as the temperature reaches to setpoint. 7.Uses a systematic approach to help autmatically determine and process the arrival of temperature at a given timing condition. 8.Wide time range selectable in the followting formats: 999(hout),999(min)，999（sec），99.5(h.m) 9.Accessible time adjustments even during in the operation mode. 10.Interchangeable output contact: A contact, B contact. 11. Automatic temperature compensation control which help keeps the temperature more accurate. 12. Can suit 2 alarms to make applications more flexibile. 13.Selectable heating to cooling system to choose from.