... with waveform pulse,contact switch,encoder(PNP or NPN) 4/6/8 digits display. 6 digits Multimeter for Height/Position/Length/Counting ... Features: 1, Various wave form pulse input,contact switch,encoder(NPN ... RTU protocol,connectable with various equipment,computer or PLC directly.6, Power supply:regular: 90-265V AC/DC,others: 12 ...