Universal Uni- / Bipolar Signal Transmitter – PR electronics 4104
Universal Transmitter – PR electronics 4114
Universal Transmitter – PR electronics 4116
Universal Trip Amplifier – PR electronics 4131
Universal I/F Converter – PR electronics 4222
Programmable Transmitter – PR electronics 5114A
Signal Calculator – PR electronics 5115A
Programmable Transmitter – PR electronics 5116A
Universal Converter – PR electronics 9116A