![This thermometer belonged to my great-grandfather. What are the substances at the bottom? The red liquid and tiny metal balls? (It's about 5 inches long) : r/Whatisthis This thermometer belonged to my great-grandfather. What are the substances at the bottom? The red liquid and tiny metal balls? (It's about 5 inches long) : r/Whatisthis](https://i.redd.it/this-thermometer-belonged-to-my-great-grandfather-what-are-v0-960fusxlw07b1.jpg?width=1512&format=pjpg&auto=webp&s=c93eb67c05b4bec4977bfbfddeb0f1f59c9a0159)
This thermometer belonged to my great-grandfather. What are the substances at the bottom? The red liquid and tiny metal balls? (It's about 5 inches long) : r/Whatisthis
![Amazon.com: Candle Thermometer for Candle Making - DIY Wax Candle Making Supplies - Ideal Candle Making Thermometer with Clip and 175mm Stainless Steel Probe : Arts, Crafts & Sewing Amazon.com: Candle Thermometer for Candle Making - DIY Wax Candle Making Supplies - Ideal Candle Making Thermometer with Clip and 175mm Stainless Steel Probe : Arts, Crafts & Sewing](https://m.media-amazon.com/images/I/61vOWj9CVJS.jpg)
Amazon.com: Candle Thermometer for Candle Making - DIY Wax Candle Making Supplies - Ideal Candle Making Thermometer with Clip and 175mm Stainless Steel Probe : Arts, Crafts & Sewing
![Amazon.com: Industrial Thermometer Mini IR Thermometer Pen, Kethvoz Digital Infrared Laser Temperature Meter 960C Non Contact Meausre Temp -22 to 527℉ for Kitchen Food Cooking, Wine, Soap/Candy DIY Making : Industrial & Amazon.com: Industrial Thermometer Mini IR Thermometer Pen, Kethvoz Digital Infrared Laser Temperature Meter 960C Non Contact Meausre Temp -22 to 527℉ for Kitchen Food Cooking, Wine, Soap/Candy DIY Making : Industrial &](https://m.media-amazon.com/images/I/610Op5iNc7L.jpg)