The combo CO/Combustible gas detector is the first of its kind to combine both detection technologies into one easy to use hand-held and affordable instrument. The TPI 775 is a state-of-the-art Carbon Monoxide and Combustible Gas Leak Detector. It is the first of its kind to combine both detection technologies into one easy to use hand-held affordable instrument.

One hand operation Auto Zero Backlight Visable and audible alarm