Versatile. Precise. Delicious! The TCH130 is designed to help you make superior chocolates and a wide range of low-temperature-based candies. This thermometer is made of durable laboratory glass and is engineered to give you the precise measurement accuracy necessary for successful chocolate tempering. Chocolate tempering — melting and then cooling chocolate to a predetermined temperature — is a necessary process for achieving professional quality chocolates in the home. Measurement Range: 40 to 130°F