● Red liquid thermometers are safer than mercury, and can be used in all general laboratory applications including hot ovens and incubators. ● 12 length. ● White Back and Total Immersion Ring Top - Easy to hang Scales Printed Horizontally - Easier to Read Reinforced Glass Bulb - Strengthened bulbs prevent breakage if students misuse thermometer as stirring rod Nonroll Fitting Feature Permanently Fused Markings - Scale never washes out 1° subdivisions