Bridge Analyzers, Inc. has exhaust gas analyzers, residual oxygen analyzers, MAP gas analyzers (modified atmosphere packaging), headspace gas analyzers and case ready meat gas analyzers. Applications include standard exhaust gas instruments used as diagnostic tools for mechanics to test tailpipe emissions. Specialized food packaging gas measurement in portable battery operated instruments provide food processors that are packaging using modified atmosphere packaging (MAP) processes a means to confirm that their packaging will deliver the extended shelf life which food manufacturers expect.