Incorporating infrared detection technology, the Triple Plus+ IR extends the capability of the Triple Plus+ allowing extended life detection of hydrocarbons and carbon dioxide. IR sensors have high resistance to interference or inhibition by other gases and are suitable for both high gas concentrations and use in inert (oxygen free) backgrounds. The unique design of the Crowcon IR sensor module used in Triple Plus+ IR allows measurement of hydrocarbons at both % LEL and % vol. ranges making this instrument ideal for tank and line purging applications within oil and gas and industrial applications.