K-Line admin1 30/11/2019 08/01/2020 k121k109uik109sk109lv2k111k112k109ptk109pthpc_k109pt1000k120rtdk109tck107ak107bk107usb K-Line Click on the pictures below for more information. Analog converters K121 K109UI K109S K109LV Circuit-powered insulator / universal converter (mA, mV, V, PT100, PT1000, PT500, Ni100, Ohm, TC) Galvanic isolator / analog converter Power I/O converter for 2-wire sensors Current shunt / V-I converter Digital converters K111 K112 Isolating dual output frequency amplifier Universal digital coupler / isolator Temperature converters K109PT K109PT-HPC K109PT1000 K120RTD K109TC Pt100 converter Pt100 precise converter Pt1000 converter Pt100, Ni100 loop powered converter Adjustable threshold thermocouple converter Serial converters K107A K107B K107USB RS485/RS485 serial amplifier RS232/RS485 serial amplifier RS485/USB asynchronous serial converter