Chill your vials for almost 3 hours and visual see a color change if it is getting to warm.

• Maintains a temperature of less than 4 °C for almost 3.5 hours
• Racks show a clear visible color change from green to yellow when temperature rises above 7 °C
• Convenient when transporting samples
• Autoclavable

FrostyMate™ Color Change Freezer Racks provide a visual indicator of temperature levels for easy reference during use and transport of samples. These reusable polypropylene racks have an operating range of −86 °C to + 121 °C and can maintain a temperature of less than 4 °C for almost 3.5 hours (with lid on) at room temperature. The rack dramatically changes color from green to yellow when its temperature rises above 7 °C. Racks include an alphanumeric grid for organizing samples.

Available in a 24-place option (6×4 array) that holds 1.5 to 2 ml micro tubes and six 0.5 ml micro tubes using an included adapter and a 96-place option (12×8 array) that holds 0.2 ml PCR tubes or strips.