Measure temperature in dry block heaters of the Thermo Scientific™ Reacti-Therm™ Heating and Stirring module and other laboratory equipment using Thermo Scientific™ Reacti-Therm™ Thermometers. The thermometers are mercury-free and alcohol-filled for greater safety. PTFE coating ensures that glass is impervious to corrosive materials. They are available in two different temperature ranges.