Features - advanced digital design & optical structure - various analog & digital signal output - spectrum response: 8-14m - temperature range:0-500 - accuracy: 1.5 or 1% - optical resolution: 20:1 - response time: 500ms(95%) - factory calibration with temperature - compensation within full range - wide range of operation temperature - easy to install & maintain, low cost Description Vtir50b thermometer is Composed of metal housing, optical component and special integrated circuit, which can be used for non-contact temperature measurement in electric power, metallurgy, petrifaction and other industry. Also many accessories are available to select, such as purging cases and 90 adjustable mounting bracket, three-dimensional adjustable mounting bracket, digital display table, etc.) and so on.