ALTAIR io™ 4 Gas Detector With 4-Year MSA Grid Subscription, 4 Gas, LEL - CO - H2S -O2Designed with fully integrated connectivity for real time visibility across your worksites from Day One Available through MSA+, the comprehensive subscription program including hardware and software, gives you access to powerful cloud based solutions enabling faster implementation, increased warranty coverage and automatic software and firmware upgrades with minimal capital expense CAT M LTE cellular connectivity and integration with the MSA Grid