Why call it barrel thermometer?

Have you ever in a convenience store seen the figure of it? Have you ever seen the figure of it in the kitchen? Have you ever seen the figure of it in a coffee shop? It is a common household bimetallic thermometer. Commonly used in hotel, family, coffee shop, etc. Model: PT1005 series type: hot shell bimetallic thermometer structure: axial type cover circle: no ( There are optional) Material: stainless steel SS304 tooth head: no tooth surface diameter: 25 mm heat pipe diameter: 3. 8 mm heat pipe length: 127 mm ( Optional) around 200 mm. Temperature range: - 10 - 110 c F( Can be customized) Accuracy: & plusmn; 1. 5% table: plastic ( Glass is optional) Plastic barrel, a variety of color can choose the color of the barrel can be red, white and blue, with the design of the barrel, can effectively prevent the thermometer, pointed tail of the heat pipe. Small volume, safe to carry, easy to store, and even can be directly put into clothes pocket. So we call it the barrel thermometer.