The SF-2950 is a cryostat low-temperature constant-cooling microtome from Lab-kits. The device has several different functions including temperature control, automatic and manual defrosting, separate defrosting devices on freezers and sample chuck, and dual compressors freezing which can be controlled using a computer. It also has a loading station that operates using a stepping motor. It is integrated with an LCD display that shows stroke, slice thickness, functional control, temperature control, date, time, temperature, timing switching, timing fumigation, and defrosting. The SF-2950 has a sleek design and features a freezer with huge storing capacity and fast freezing sample frame. The freezer temperature can be adjusted within -1 up to -10°C which extends the compressors life and saves energy. Furthermore, the unit has easy-to-use sample clamps and a safe lock handwheel.