Simultaneous detection of 4 gases
               CH4, O2, NO2 & CO or CH4, O2, H2S & CO
 Smallest / Lightest 4 gas monitor on the market
 Dual audible alarm ports (95 db @ 30 cm)
   3 visual alarm LED
   Vibration alarm
   IP-67 Water resistant / dustproof design
   Calibration and bump test lock out or reminder
               controls
   Large capacity data logging standard
               8 alarm trends
               Log time range of 10 to 300 hours     
               100 calibration records stored
 20 hours of operation (NiMH batteries)
 Large LCD display screen
 Automatic backlighting at alarm
 Impact resistant rubber over-mold body
 Intrinsically safe, MSHA classified
 2 year warranty