Product Spec. *Multi-Purpose Thermometer with Timer Function *Temperature Range: -50°C ~300°C *Use 1X1.5 V Lr44 Battery *Staninless Steel 14cm long 计时、报警、温度计 温度范围: -50°C ~300°C 计时范围:1秒~100小时 外观尺寸:6.2X2.8X1.2cm 液晶尺寸:52x21mm 钢针长度:14cm