CALORIMETER, DOUBLE WALL, ALUMINIUM (0706) Double vessel calorimeter with inner smaller vessel of about 300ml capacity positioned inside bigger aluminium vessel of about 900ml capacity with air insulation between them to minimize heat loss. The vessels have a insulated plastic lid for thermal insulation at the top and two holes - bigger one for holed rubber stopper to mount thermometer and amaller one for stirrer. Supplied complete with stirrer but without thermometer. Qty :