Feature: 1. Wide Application: This laboratory heating mantle can be used for liquid heating in college laboratories, petrochemical, pharmaceutical, environmental protection and other industries, and is the most ideal heating equipment for laboratories and fine chemical installations. 2. Alkali Free Fiberglass: This laboratory heating mantle uses high temperature alkali free fiberglass as an insulating material, sealing resistance wires in the insulation and then braiding them into a hemispherical internal heater. 3. Large Heating Area: This laboratory heating mantle has a large heating area, which heats up quickly and keeps the heat well. 4. Non Electronic Electric Voltage Regulating Circuit: This laboratory heating mantle adopts advanced non electronic electric voltage regulating circuit, which has the advantages of long service life and large temperature regulating range comparing with mechanical temperature regulating. 5. Knob Design: This laboratory heating mantle uses a knob to adjust the temperature, which is very easy and convenient to operate. Specification: Item Type: Laboratory Heating Mantle Material: Cold Rolled Steel, Alkali Free Fiberglass Volume: 500mL Heating Power: 250W Temperature Range: 0-380℃ ( Stepless Temperature Adjustment ) Maximum Temperature: 380℃ Working Time: Continuous. Package List: 1 x Laboratory Heating Mantle1 x Power Cord