The low-temperature metal PCR cooler can quickly cool down the liquid prepared in the laboratory and maintain a low temperature state after sufficient cooling. It can be used with a silicone base to ensure a longer cooling capacity. It is widely used in low-temperature sampling operations such as nucleic acid and protein experiments. It can effectively keep the PCR reaction solution or enzyme solution at a low temperature to prevent degradation due to temperature rise, which can effectively ensure the experimental effect and improve the experimental efficiency. Features: 1. Aluminum alloy material, efficient heat conduction; 2. The color oxygen layer is wear-resistant; 3. Resistant to overall high pressure, ultraviolet radiation, alcohol disinfection and other decontamination operations, and can be used repeatedly; 4. Reasonable hole spacing design, suitable for heat preservation operation, rapid cooling in ice bath or refrigerator, or sample heating and heat preservation; 5. A variety of specifications are available, suitable for 4pcs 50ml centrifuge tubes and sample tubes.