... , Auto diagnosis 3, Frost protection 4, AC and DC compatible 1, Intelligent defrosting2, Auto diagnosis3, Frost protection4, AC and DC compatibleWith ... -quality products at the competitive price. More about our company:1. IPC-A-160 standard2. Adopted the advanced production equipments and ... . OEM and ODM services are welcomed5. Approval: ISO9001:2000 Centrial Air conditioner controller 1