Combustible Gas Indicator

Pine carries combustible gas indicators capable of detecting the presence of any gas or vapor which, when combined with oxygen in free air, presents a potential hazard due to flammability/explosion. Common examples of locations where this instrument is used include storage tanks, confined spaces, manholes, tank cars, ships and shipyards, tunneling, pumping stations and hazardous waste sites. 
Pine Environmental
Bascom-Turner Gas-Explorer