... tubeLED×1Brightness400cd/mmResolution480x272Display size4.3" diagonalOperation typeTouch panel type,4 Line precision resistance(Surface hardness 4H,≥one million times)Text ... 1G,30minutes)EnviromentEMIFCC Part 15 Class ACEEN55022,EN61000-4-2,EN61000-4-3,EN61000-4-8front panel waterproof designNEMA4, IP65Fcooling methodnatural air ... COGNITO QUAM, GE, AIRTECNICS, AND SO ON. HMI control system 4 inches