TBTTH-B Concrete Carbonization Testing Cabinet is a sealed box. Placing the specimen on clapboard inside cabinet, then set temperature, relative humidity and carbon dioxide concentration by digital controller to ensure temperature, humidity and carbon dioxide concentration constant inside the box.

It consists of cabinet, control system for temperature, humidity and carbon dioxide concentration. The outer box is made of cold-rolled steel plate, the inner liner is made of high-quality stainless steel plate, the clapboards are made of stainless steel, with good moisturizing, sealing and corrosion resistance.