Serving explosion proof environments, Models FB1100 and FB1200 feature compact design with integral sensor, battery, and I/O options. Models FB2100 and FB2200, packaged for C1D2 hazardous area locations, provide additional I/O capacity and capability along with packaged enclosure to minimize installation time. Providing API compliant gas measurement for single or dual meter runs, field-mounted flow computers offer extensive alarming, reporting, and event log capabilities.