Dependable OHAUS Guardian 2000 Hotplate Stirrers are ideal for education and other lab environments that require affordable, everyday fast heating and reliable stirring up to 15l. The durable housing includes a built-in support rod holder which accepts the optional support rod. Includes PTFE-coated stir bars. Square Ceramic top 10.2 x 10.2cm. - Consistent, Dependable Stirring and Heating:Powerful stirring and fast heating at an economical price. Safely heat up to 500°C and stir up to 15l with an easy-to-use knob control for simple and reliable everyday heating and stirring in the lab.- Designed for Reliability and Durability in Every Lab:Designed to last - the rugged metal housing has a spill-resistant design for long life in the lab, under harsh conditions. The smooth, chemical-resistant ceramic top plate is perfect for easy clean up.- Designed for User Safety:Safety is of utmost importance - the prominent hot top indicator light illuminates when the heater is above 40°C, keeping the end user safe during all heating applications.