... intelligence 2, Leakage protection 3, STN LCD 4, Mutil-period heater selected 1, Artificial intelligence2, Leakage protection3, STN LCD4, Mutil- ... period heater selectedWith more than 12 years experience in the development and manufacturing of Microcomputer controllers ... . OEM and ODM services are welcomed5. Approval: ISO9001:2000 Electric Water heater controller