Personal Sample Draw 5 in 1 Gas Monitor Three operating modes: Normal, Bar Hole, and Leak Check Monitors LEL, and % volume methane, O2, and CO (optional H2S) Barhole mode tests for peak methane and oxygen levels Leak detect mode offers high sensitivity tests for ppm level natural gas leaks 0 to 100% volume Methane Auto-ranging display of % volume and % LEL Internal sample drawing pump with up to 40' range Vibration, visual, and audible alarms Automatic backlight during alarms[...]