This thermometer is perfect for classroom presentation it is large and easy to read. The temperature is displays in Fahrenheit and Celsius perfect for a variety of classroom temperature exercises. This thermometer even notes the freezing point of water. This oversized (15 ) thermometer features a large accurate 12 glass magnifying tube. Range: -40° to 50° C and -40° to 120° F. Ideal for all grades. Versatile thermometer is large bold and easy to read Thermometer reads a temperature range of -40° C to + 50° C and -40° F to 120° F