Large ceramic work surface 7 x 7 in Safety LED indicates hot surface 5L stir capacity Control actual sample temperature (with optional probe) Alkali ScientificHotplates and Stirrers H3710-HS provide reliable performance and safe operation for everyday laboratory use Our space efficient 7 x 7-inch hotplate/stirrer series features a durable chemical resistant white ceramic top plate and advanced microprocessor controls The constant monitoring system provides precise control of temperature with rapid heating and faster boiling times In addition the powerful motor drive system ensures efficient mixing in larger and more viscous samples Temperature and mixing speed can be viewed on the large digital display and a safety LED illuminates when the top plate temperature exceeds 50C An external temperature probe can also be used for applications that require precise control of sample temperature The probe provides direct feedback to the microprocessor with constant monitoring and adjustmen