Measure the heat generated by physical changes or chemical reactions with the calorimeters available at Avantor. Select a copper model or an aluminum option with double-wall construction and insulation; both products feature slots in the lids for stirrer and thermometer. Oxygen bomb calorimeters, appropriate for solid- and liquid-combustible samples, offer molded double-wall construction and require no permanent connections. These models include ignition unit and digital thermometer.