IsoFreeze rack with temperature indicater Holds 96 x 0,2 ml PCR tubes, strips and plates Made of polypropylene Maintains 4ºC in almost 3½ hours Changes its colour from green to yellow as long as the temperature of the rack changes Dimensions with lid: 141 x 99 x 44 mm. Dimensions without lid: 141 x 99 x 38 mm. Freeze for a minimum of 8 hours at -20° before use. Store at the freezer while not being used