Tektronix MSO4000B MSO4054B MSO4104B MSO4034B Membrane KeypadTektronix models of MSO4000B MSO4054B MSO4104B MSO4034B Membrane Keypad That is an excellent keypad panel parts. An excellent replacement solution for all models mentioned above, it is re produced by a professional local keypad manufacturer Good to use for repair & parts replacement engineering Return is accepted ONLY due to DOA while arrival There is no return if protection seals are removed broken opened Import Tax and custom clearance are responded