With high stability even at the maximum speed, shaking block heaters and coolers mix samples at precise temperatures. Evenly blending substances to be homogenous, for reproducible and reliable results. Machines with LCD touch screens constantly monitor the testing conditions as well as transfer collected data to a computer for further review and storage. NIST traceable certificates are offered for select shaking block heaters and coolers. The equipment works well with interchangeable blocks to house any sample container employed.