Opto Diode presents a new, two-stage, cooled, lead selenide (PbSe) detector that operates in the mid-infrared (IR) spectral region with peak sensitivity between 4.3 and 4.5µm. The cooler on the BXT2S-28T allows the detector element to operate as low as -45 °C to maximize detectivity (D*). The BXT2 Series of two-stage TEC lead sulfide infrared detectors provide temperature stability and the highest level of performance for use in harsh environments. Both TO37 and TO8 packages are available. Applications for these products include Gas analysis, Emissions monitoring, Spectroscopy, Process control systems, Thermal imaging, Defense and security. For more information, download the available datasheet.