The Viator USB HART Interface provides a flexible PC communication link to HART networks. It is used to commission, service, calibrate, and acquire data from any HART field device or transmitter. The interface is compact and rugged for field use. The VIATOR USB HART Interface is a PC communication link to HART networks for commissioning, servicing, calibrating, or acquiring data from any HART instrument or transmitter. This external interface is rugged and compact for field use. Fully HART compliant for communication with any HART instrument and error-free slave testing Easy installation (Software Driver Included) CE approved for sale in Europe Draws power from USB port and needs no external power supply Rugged ABS plastic case gives you industrial-grade reliability in a small package Polarity insensitive so you may attach either one of the test clips to positive or negative poles