1、New Compact Splash Proof Case. 2、High Quality Gear BoxMotor. 3、Speed Control for DetergentRinse Pump. 4、RinseDetergent Prime. 5、EDPM Squeeze Tube. 6、On/Off Switch for Delime Work. 7、Check Concentration Level by Probe Sensing. 8、Fuse Protection. 9、Front Panel Offers Programming by Digital Set. 10、Secure Password Entry Protection. 11、when p1 is not Able to work , it will Automatically shift to P0.