Electronic communications and controller equipment, namely, handheld and panel mounted control display units comprising a keyboard and related communications apparatus in the nature of wired and wireless data entry apparatus, intelligent embedded controller of computer automation equipment, and remote control display terminals, including embedded smart controller, touch control data entry apparatus, and programmable semi and autonomous automation controller, for use in secure, commercial, military, industrial and public safety applications | Repair and maintenance services of electronic communications and controller equipment, namely, handheld and panel mounted control display units comprising a keyboard and related communications apparatus in the nature of wired and wireless data entry apparatus, intelligent embedded controller of computer automation equipment, and remote control display terminals, including embedded smart controller, touch control data entry apparatus, and programmable semi and autonomous automation controller, for use in secure, commercial, military, industrial and public safety applications