The BL Series 4°C恒温Blast-Proof Refrigerator features include: The body is made of structural steel plate, treated with anti-corrosion phosphatization and painting processes; the inner lining is made of SUS304 stainless steel plate, offering corrosion resistance and long service life, easy to clean; it is equipped with a high-precision microcomputer temperature control system featuring a PT100 sensor with a safety grid, ensuring safe and stable operation; a high-brightness digital display screen maintains the internal temperature within 2-8°C with a precision of 0.1°C; the 4°C恒温Blast-Proof Refrigerator has various alarm functions such as high and low temperature, sensor failure, and high/low temperature range alarms; the pull-out shelf can be adjusted for height, position, and quantity as needed, and the shelf stopper design prevents accidental withdrawal and fall; the new color scheme, ergonomic overall design, and simple operation; the foamed door body is equipped with a metal handle for comfortable grip; static electricity prevention technology connects the shell and lining, door shell and inner lining with copper stranded wire, with all moving parts inside made of metal; the entire unit is blast-proof, with electrical components using explosion-proof (fan, control panel), intrinsic safety (display board), and sealed-type (compressor) designs; the refrigerator uses a surface-mounted condenser for stable heat dissipation, reducing the impact of dust on cooling; it is equipped with four swivel casters (two with self-locking function) for easy movement and stable placement; the internal blast-proof fan circulates, in conjunction with the air duct circulation, to ensure the temperature performance inside; the refrigerator is equipped with a lock on the body to prevent unauthorized opening and ensure the safety of items.