Great For Any Outdoors Person. Use As A Zipper Pull, Key Ring Or Hang On A Backpack. The Thermometer Tube Is Sealed Inside A Clear Acrylic Case With A Handy Wind Chill Chart On The Back. Fahrenheit/Celsius Temperature Scale. Range 20 To +120 Degrees F And 30 To +50 Degrees C. Dimensions: 1 1/8"X 2". Wt: 0.3 Oz.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }