Weatherproof, chemical resistant, anti RFI / EMI coated high impact polycarbonate – PBT blend. Can operate in rain or be set into 2.0” of water without leakage. Ergonomically balanced with rugged top mounted handle.  Backlit 128 x 64 graphics display. Viewed through window in case top. Displays readings & status of all 6 channels simultaneously. Backlight, illuminates for alarms and on demand with adjustable time. Optional mode allows automatic or manual scrolling display of just one gas at a time with very large characters.  4 External glove friendly push buttons for operation, demand zero, and autocalibration. Buttons also access LEL/ppm, % Vol. alarm silence, peak hold, TWA/STEL values, battery status, conversion factors, and many other features.