DROK Indoor/outdoor Digital Auto Thermometer LCD Temperature Measurement With Dual Sensor Probe Double-screen digital LCD: Simultaneously measuring temperatures of two places Long sensor go-between:The length of the outdoor go-between is about 1.3 meters Exclusively designed:can easily pass through the refrigerator's sealed parts not causing gas leaked Can be placed on the table, nailed on the wall and in the refrigerators with strong magnetic iron. Measuring range: -50c +70 c; Measuring precision:+ /- 1 c(-30c +50c)