Frosty Mate Color Change Freezer Rack, 1.5/2.0-ml Tube, 24 Place, Each

Details:

Check sample temperature at a glance. Here is a freezer rack that provides a visual indicator of temperature by dramatically changing color from yellow to dark green when its temperature is below 7° c and back to yellow when its temperature rises above 7° c. This reusable polypropylene rack has an operating range of –86° c to 121° c and can maintain a temperature of less than 4° c for almost 3-1/2 hr (with lid on) at room temperature. It accommodates twenty-four 1.5/2.0-Ml tubes in a 6 x 4 array and six 0.5-Ml tubes with included adapters.