1.Cold Keeper. 2.ISO,CE Passed. 3.3years warranty. A & E Lab HK.Major Products: Hotplate,Stirrer, ... 2ml, simply change format of the compartments when you need different sizes. The unit can also use the ceramic-coated aluminum ... various sample vials at the same time.There are two different models: ACK-301, the analog device, keeps your sample at 0 ...