Measuring range:-50 ° C ~ + 300 ° C (-58℉ to 572℉)，if the temperature is below -50°C(-58℉) or above 300°C(572℉),“H1”or"L1"will appear on the display Response time :3s Auto-off funtion:The product will power off autormatically if ti's unused in 10 minutes Waterproof level:IPX6 Resolution:0.1°C Temperature accuracy:-20 ° C ~ + 150°C (-4℉ to 302℉)±1°C(±2℉) 150° C ~ 200°C (302℉ to 392℉)±2°C(±4℉) Except the above measurement range ,the accuracy will exceed 2°C(4℉) Battery type:CR2032