TBTTH-B is designed for evaluating the carbonation resistance and depth of concrete specimens, this device accelerates natural atmospheric aging in a controlled laboratory setting. It safely and precisely manages carbon dioxide concentrations of up to 20% or less to measure how deeply CO2 penetrates the concrete matrix over time. TBTTH-B consists of a heavy-duty test cabinet and a highly sophisticated environmental control system. By delivering synchronous, reliable management of temperature, relative humidity, and CO2 levels, it provides the stable testing environment necessary to achieve consistent and compliant test results.