KL3000A function:
1.digital display
2.automatic water inlet and drain out
3.when turn off steamer, automatic ozone disinfector
4.automatic protect the machine when lack of water
5.auto.protect when over pressure.
6.the circuit board proof lightning strike, interfere and can stable pressure
7.double over pressure protection
     a. over pressure switch
     b.automatic magnetic valve switch
8.  a.double water tank can proof the oxidation of water level probe make good sensitive of detector. 
     b. water level probe always in low temperature that can reduce the corrosive of probe by sediment.
     c.double water tank can increase the steam, make steam come out fast and make less water come out together with the steam,also can make the steam continuance without stop.