1,lower price hmi 2, with PCB board and Controller 3,tft lcd displayer module with touch and interface 4,24 bit ... Data.Application Field: Medical & Cosmetology Equipment, Electronic-Instrument, Industry Controller, Electric Power Industry, Engineering Machinery, Civilian Electronic Product and so ... it is free change within 5 years. 7 tft lcd touch displayer module with rs232 interface and working with ...