Apparatus of handheld non-contact infrared thermometer easy to use. Can be used to measure surface temperature that traditional non-contact infrared thermometer difficult to; Application: railways electronics heating steel glass plastic cement production process; 1.8" screen; Measuring range: 200~2200'C (392~3992'F); Measuring accuracy: 200~450'C (392~842'F): +/-2'C / +/-3% 450~1100'C (842~2012'F): +/-3'C / +/-3% 1100~2200'C (2012~3991'F): +/-4'C / +/-3%; Response time: 500msec; Response wavelength: 900~1700nm; Transmitting rate: 0.10~1.00; Working temperature: 0~40'C (32~104'F) CD: http://m5.img.dxcdn.com/CDDriver/CD/sku.334816.rar