1、基本范围-50℃-110℃ 2、精度误差小于0.5℃ 3、LED 数码直读显示 4、可以任意设定温度的上下限报警功能-1, the basic range of-50 ℃-110 ℃ 2, the precision error is less than 0.5 ℃ 3, LED digital direct reading display 4, the temperature can be set lower and upper limits alarm