Cal Sensors has introduced its LMA (linear multiplexed array) family of lead salt infrared detectors. Available in both PbS and PbSe, the 256-element array provides sensitivity in the 1- to 5.5-μm-wavelength region. It features built-in compensation elements and a refined optional cooler controller, enhancing measurement stability by up to 25%. The array consists of six compensation elements and 250 active elements and provides real-time measurement compensation for environmental changes. The measurement is adjusted based on a comparison of the six compensation elements and three active elements on each side of the array. The design reduces the effects of system noise by up to 10%, optimizing the measurement resolution, and the built-in shielding isolates the array from environmental variables that could reduce measurement accuracy.