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The Model HI-Q120 is a drop in replacement for traditional barrel-type meters except that the HI-Q120 has no barrel or behind-the-panel components. The HI-Q120 has been used as a SCADA remote display driven by the central computer via the RS-232C or RS-422 serial bus. The baud rate and address are set via dip-switches or the serial port. The extended temperature range LCD display has 41 large segments, three-and-a-half digits and eight annunciators. Blacklight is optional.